diff --git a/cmds/am/src/com/android/commands/am/Instrument.java b/cmds/am/src/com/android/commands/am/Instrument.java
index 1e72ddf..0b439df 100644
--- a/cmds/am/src/com/android/commands/am/Instrument.java
+++ b/cmds/am/src/com/android/commands/am/Instrument.java
@@ -545,6 +545,8 @@
                 mWm.setAnimationScales(oldAnims);
             }
         }
+        // Exit from here instead of going down the path of normal shutdown which is slow.
+        System.exit(0);
     }
 
     private static String readLogcat(long startTimeMs) {
diff --git a/core/api/current.txt b/core/api/current.txt
index 1c014454..9d1a171 100644
--- a/core/api/current.txt
+++ b/core/api/current.txt
@@ -9125,8 +9125,10 @@
     method @RequiresPermission(android.Manifest.permission.BLUETOOTH_CONNECT) public boolean requestMtu(int);
     method @RequiresPermission(android.Manifest.permission.BLUETOOTH_CONNECT) public boolean setCharacteristicNotification(android.bluetooth.BluetoothGattCharacteristic, boolean);
     method @RequiresPermission(android.Manifest.permission.BLUETOOTH_CONNECT) public void setPreferredPhy(int, int, int);
-    method @RequiresPermission(android.Manifest.permission.BLUETOOTH_CONNECT) public boolean writeCharacteristic(android.bluetooth.BluetoothGattCharacteristic);
-    method @RequiresPermission(android.Manifest.permission.BLUETOOTH_CONNECT) public boolean writeDescriptor(android.bluetooth.BluetoothGattDescriptor);
+    method @Deprecated @RequiresPermission(android.Manifest.permission.BLUETOOTH_CONNECT) public boolean writeCharacteristic(android.bluetooth.BluetoothGattCharacteristic);
+    method @RequiresPermission(android.Manifest.permission.BLUETOOTH_CONNECT) public int writeCharacteristic(@NonNull android.bluetooth.BluetoothGattCharacteristic, @NonNull byte[], int);
+    method @Deprecated @RequiresPermission(android.Manifest.permission.BLUETOOTH_CONNECT) public boolean writeDescriptor(android.bluetooth.BluetoothGattDescriptor);
+    method @RequiresPermission(android.Manifest.permission.BLUETOOTH_CONNECT) public int writeDescriptor(@NonNull android.bluetooth.BluetoothGattDescriptor, @NonNull byte[]);
     field public static final int CONNECTION_PRIORITY_BALANCED = 0; // 0x0
     field public static final int CONNECTION_PRIORITY_HIGH = 1; // 0x1
     field public static final int CONNECTION_PRIORITY_LOW_POWER = 2; // 0x2
@@ -9145,11 +9147,14 @@
 
   public abstract class BluetoothGattCallback {
     ctor public BluetoothGattCallback();
-    method public void onCharacteristicChanged(android.bluetooth.BluetoothGatt, android.bluetooth.BluetoothGattCharacteristic);
-    method public void onCharacteristicRead(android.bluetooth.BluetoothGatt, android.bluetooth.BluetoothGattCharacteristic, int);
+    method @Deprecated public void onCharacteristicChanged(android.bluetooth.BluetoothGatt, android.bluetooth.BluetoothGattCharacteristic);
+    method public void onCharacteristicChanged(@NonNull android.bluetooth.BluetoothGatt, @NonNull android.bluetooth.BluetoothGattCharacteristic, @NonNull byte[]);
+    method @Deprecated public void onCharacteristicRead(android.bluetooth.BluetoothGatt, android.bluetooth.BluetoothGattCharacteristic, int);
+    method public void onCharacteristicRead(@NonNull android.bluetooth.BluetoothGatt, @NonNull android.bluetooth.BluetoothGattCharacteristic, @NonNull byte[], int);
     method public void onCharacteristicWrite(android.bluetooth.BluetoothGatt, android.bluetooth.BluetoothGattCharacteristic, int);
     method public void onConnectionStateChange(android.bluetooth.BluetoothGatt, int, int);
-    method public void onDescriptorRead(android.bluetooth.BluetoothGatt, android.bluetooth.BluetoothGattDescriptor, int);
+    method @Deprecated public void onDescriptorRead(android.bluetooth.BluetoothGatt, android.bluetooth.BluetoothGattDescriptor, int);
+    method public void onDescriptorRead(@NonNull android.bluetooth.BluetoothGatt, @NonNull android.bluetooth.BluetoothGattDescriptor, int, @NonNull byte[]);
     method public void onDescriptorWrite(android.bluetooth.BluetoothGatt, android.bluetooth.BluetoothGattDescriptor, int);
     method public void onMtuChanged(android.bluetooth.BluetoothGatt, int, int);
     method public void onPhyRead(android.bluetooth.BluetoothGatt, int, int, int);
@@ -9166,20 +9171,20 @@
     method public int describeContents();
     method public android.bluetooth.BluetoothGattDescriptor getDescriptor(java.util.UUID);
     method public java.util.List<android.bluetooth.BluetoothGattDescriptor> getDescriptors();
-    method public Float getFloatValue(int, int);
+    method @Deprecated public Float getFloatValue(int, int);
     method public int getInstanceId();
-    method public Integer getIntValue(int, int);
+    method @Deprecated public Integer getIntValue(int, int);
     method public int getPermissions();
     method public int getProperties();
     method public android.bluetooth.BluetoothGattService getService();
-    method public String getStringValue(int);
+    method @Deprecated public String getStringValue(int);
     method public java.util.UUID getUuid();
-    method public byte[] getValue();
+    method @Deprecated public byte[] getValue();
     method public int getWriteType();
-    method public boolean setValue(byte[]);
-    method public boolean setValue(int, int, int);
-    method public boolean setValue(int, int, int, int);
-    method public boolean setValue(String);
+    method @Deprecated public boolean setValue(byte[]);
+    method @Deprecated public boolean setValue(int, int, int);
+    method @Deprecated public boolean setValue(int, int, int, int);
+    method @Deprecated public boolean setValue(String);
     method public void setWriteType(int);
     method public void writeToParcel(android.os.Parcel, int);
     field @NonNull public static final android.os.Parcelable.Creator<android.bluetooth.BluetoothGattCharacteristic> CREATOR;
@@ -9219,8 +9224,8 @@
     method public android.bluetooth.BluetoothGattCharacteristic getCharacteristic();
     method public int getPermissions();
     method public java.util.UUID getUuid();
-    method public byte[] getValue();
-    method public boolean setValue(byte[]);
+    method @Deprecated public byte[] getValue();
+    method @Deprecated public boolean setValue(byte[]);
     method public void writeToParcel(android.os.Parcel, int);
     field @NonNull public static final android.os.Parcelable.Creator<android.bluetooth.BluetoothGattDescriptor> CREATOR;
     field public static final byte[] DISABLE_NOTIFICATION_VALUE;
@@ -9508,8 +9513,12 @@
     field public static final int ERROR_BLUETOOTH_NOT_ALLOWED = 2; // 0x2
     field public static final int ERROR_BLUETOOTH_NOT_ENABLED = 1; // 0x1
     field public static final int ERROR_DEVICE_NOT_BONDED = 3; // 0x3
-    field public static final int ERROR_FEATURE_NOT_SUPPORTED = 8; // 0x8
+    field public static final int ERROR_FEATURE_NOT_SUPPORTED = 10; // 0xa
+    field public static final int ERROR_GATT_WRITE_NOT_ALLOWED = 101; // 0x65
+    field public static final int ERROR_GATT_WRITE_REQUEST_BUSY = 102; // 0x66
     field public static final int ERROR_MISSING_BLUETOOTH_CONNECT_PERMISSION = 6; // 0x6
+    field public static final int ERROR_MISSING_BLUETOOTH_PRIVILEGED_PERMISSION = 8; // 0x8
+    field public static final int ERROR_PROFILE_SERVICE_NOT_BOUND = 9; // 0x9
     field public static final int ERROR_UNKNOWN = 2147483647; // 0x7fffffff
     field public static final int SUCCESS = 0; // 0x0
   }
diff --git a/core/api/module-lib-current.txt b/core/api/module-lib-current.txt
index 49df45a..c3f9c20 100644
--- a/core/api/module-lib-current.txt
+++ b/core/api/module-lib-current.txt
@@ -113,6 +113,11 @@
   public class AudioManager {
     method public void adjustStreamVolumeForUid(int, int, int, @NonNull String, int, int, int);
     method public void adjustSuggestedStreamVolumeForUid(int, int, int, @NonNull String, int, int, int);
+    method @RequiresPermission("android.permission.BLUETOOTH_STACK") public void setA2dpSuspended(boolean);
+    method @RequiresPermission("android.permission.BLUETOOTH_STACK") public void setBluetoothHeadsetProperties(@NonNull String, boolean, boolean);
+    method @RequiresPermission("android.permission.BLUETOOTH_STACK") public void setHfpEnabled(boolean);
+    method @RequiresPermission("android.permission.BLUETOOTH_STACK") public void setHfpSamplingRate(int);
+    method @RequiresPermission("android.permission.BLUETOOTH_STACK") public void setHfpVolume(int);
     method public void setStreamVolumeForUid(int, int, int, @NonNull String, int, int, int);
     field public static final int FLAG_FROM_KEY = 4096; // 0x1000
   }
diff --git a/core/java/android/accounts/Account.java b/core/java/android/accounts/Account.java
index 0d6a079..e6cdcc0 100644
--- a/core/java/android/accounts/Account.java
+++ b/core/java/android/accounts/Account.java
@@ -31,6 +31,7 @@
 
 import com.android.internal.annotations.GuardedBy;
 
+import java.util.Objects;
 import java.util.Set;
 
 /**
@@ -86,6 +87,12 @@
         if (TextUtils.isEmpty(type)) {
             throw new IllegalArgumentException("the type must not be empty: " + type);
         }
+        if (name.length() > 200) {
+            throw new IllegalArgumentException("account name is longer than 200 characters");
+        }
+        if (type.length() > 200) {
+            throw new IllegalArgumentException("account type is longer than 200 characters");
+        }
         this.name = name;
         this.type = type;
         this.accessId = accessId;
diff --git a/core/java/android/app/ActivityThread.java b/core/java/android/app/ActivityThread.java
index 6c3795d..bfff27a 100644
--- a/core/java/android/app/ActivityThread.java
+++ b/core/java/android/app/ActivityThread.java
@@ -464,11 +464,7 @@
 
         @Override
         public int hashCode() {
-            return hashCode(authority, userId);
-        }
-
-        public static int hashCode(final String auth, final int userIdent) {
-            return ((auth != null) ? auth.hashCode() : 0) ^ userIdent;
+            return ((authority != null) ? authority.hashCode() : 0) ^ userId;
         }
     }
 
@@ -490,7 +486,7 @@
     // Note we never removes items from this map but that's okay because there are only so many
     // users and so many authorities.
     @GuardedBy("mGetProviderKeys")
-    final SparseArray<ProviderKey> mGetProviderKeys = new SparseArray<>();
+    final ArrayMap<ProviderKey, ProviderKey> mGetProviderKeys = new ArrayMap<>();
 
     final ArrayMap<Activity, ArrayList<OnActivityPausedListener>> mOnPauseListeners
         = new ArrayMap<Activity, ArrayList<OnActivityPausedListener>>();
@@ -7020,11 +7016,11 @@
     }
 
     private ProviderKey getGetProviderKey(String auth, int userId) {
-        final int key = ProviderKey.hashCode(auth, userId);
+        final ProviderKey key = new ProviderKey(auth, userId);
         synchronized (mGetProviderKeys) {
             ProviderKey lock = mGetProviderKeys.get(key);
             if (lock == null) {
-                lock = new ProviderKey(auth, userId);
+                lock = key;
                 mGetProviderKeys.put(key, lock);
             }
             return lock;
diff --git a/core/java/android/bluetooth/BluetoothDevice.java b/core/java/android/bluetooth/BluetoothDevice.java
index c71fcc6..6e918bd 100644
--- a/core/java/android/bluetooth/BluetoothDevice.java
+++ b/core/java/android/bluetooth/BluetoothDevice.java
@@ -1340,7 +1340,10 @@
             if (alias == null) {
                 return getName();
             }
-            return alias;
+            return alias
+                    .replace('\t', ' ')
+                    .replace('\n', ' ')
+                    .replace('\r', ' ');
         } catch (RemoteException e) {
             Log.e(TAG, "", e);
         }
diff --git a/core/java/android/bluetooth/BluetoothGatt.java b/core/java/android/bluetooth/BluetoothGatt.java
index ca898bd..4e7c01a 100644
--- a/core/java/android/bluetooth/BluetoothGatt.java
+++ b/core/java/android/bluetooth/BluetoothGatt.java
@@ -16,6 +16,8 @@
 
 package android.bluetooth;
 
+import android.annotation.IntDef;
+import android.annotation.NonNull;
 import android.annotation.RequiresNoPermission;
 import android.annotation.RequiresPermission;
 import android.annotation.SuppressLint;
@@ -29,6 +31,8 @@
 import android.os.RemoteException;
 import android.util.Log;
 
+import java.lang.annotation.Retention;
+import java.lang.annotation.RetentionPolicy;
 import java.util.ArrayList;
 import java.util.List;
 import java.util.UUID;
@@ -140,27 +144,6 @@
     public static final int CONNECTION_PRIORITY_LOW_POWER = 2;
 
     /**
-     * A GATT writeCharacteristic request is started successfully.
-     *
-     * @hide
-     */
-    public static final int GATT_WRITE_REQUEST_SUCCESS = 0;
-
-    /**
-     * A GATT writeCharacteristic request failed to start.
-     *
-     * @hide
-     */
-    public static final int GATT_WRITE_REQUEST_FAIL = 1;
-
-    /**
-     * A GATT writeCharacteristic request is issued to a busy remote device.
-     *
-     * @hide
-     */
-    public static final int GATT_WRITE_REQUEST_BUSY = 2;
-
-    /**
      * No authentication required.
      *
      * @hide
@@ -430,6 +413,9 @@
                             if (callback != null) {
                                 if (status == 0) characteristic.setValue(value);
                                 callback.onCharacteristicRead(BluetoothGatt.this, characteristic,
+                                        value, status);
+                                // Keep calling deprecated callback to maintain app compatibility
+                                callback.onCharacteristicRead(BluetoothGatt.this, characteristic,
                                         status);
                             }
                         }
@@ -443,7 +429,8 @@
                  */
                 @Override
                 @SuppressLint("AndroidFrameworkRequiresPermission")
-                public void onCharacteristicWrite(String address, int status, int handle) {
+                public void onCharacteristicWrite(String address, int status, int handle,
+                        byte[] value) {
                     if (VDBG) {
                         Log.d(TAG, "onCharacteristicWrite() - Device=" + address
                                 + " handle=" + handle + " Status=" + status);
@@ -467,12 +454,13 @@
                         try {
                             final int authReq = (mAuthRetryState == AUTH_RETRY_STATE_IDLE)
                                     ? AUTHENTICATION_NO_MITM : AUTHENTICATION_MITM;
-                            int requestStatus = GATT_WRITE_REQUEST_FAIL;
+                            int requestStatus = BluetoothStatusCodes.ERROR_UNKNOWN;
                             for (int i = 0; i < WRITE_CHARACTERISTIC_MAX_RETRIES; i++) {
                                 requestStatus =  mService.writeCharacteristic(mClientIf, address,
                                                   handle, characteristic.getWriteType(), authReq,
-                                                  characteristic.getValue(), mAttributionSource);
-                                if (requestStatus != GATT_WRITE_REQUEST_BUSY) {
+                                                  value, mAttributionSource);
+                                if (requestStatus
+                                        != BluetoothStatusCodes.ERROR_GATT_WRITE_REQUEST_BUSY) {
                                     break;
                                 }
                                 try {
@@ -488,7 +476,6 @@
                     }
 
                     mAuthRetryState = AUTH_RETRY_STATE_IDLE;
-
                     runOrQueueCallback(new Runnable() {
                         @Override
                         public void run() {
@@ -525,6 +512,9 @@
                             if (callback != null) {
                                 characteristic.setValue(value);
                                 callback.onCharacteristicChanged(BluetoothGatt.this,
+                                        characteristic, value);
+                                // Keep calling deprecated callback to maintain app compatibility
+                                callback.onCharacteristicChanged(BluetoothGatt.this,
                                         characteristic);
                             }
                         }
@@ -578,6 +568,9 @@
                             final BluetoothGattCallback callback = mCallback;
                             if (callback != null) {
                                 if (status == 0) descriptor.setValue(value);
+                                callback.onDescriptorRead(BluetoothGatt.this, descriptor, status,
+                                        value);
+                                // Keep calling deprecated callback to maintain app compatibility
                                 callback.onDescriptorRead(BluetoothGatt.this, descriptor, status);
                             }
                         }
@@ -590,7 +583,8 @@
                  */
                 @Override
                 @SuppressLint("AndroidFrameworkRequiresPermission")
-                public void onDescriptorWrite(String address, int status, int handle) {
+                public void onDescriptorWrite(String address, int status, int handle,
+                        byte[] value) {
                     if (VDBG) {
                         Log.d(TAG,
                                 "onDescriptorWrite() - Device=" + address + " handle=" + handle);
@@ -614,7 +608,7 @@
                             final int authReq = (mAuthRetryState == AUTH_RETRY_STATE_IDLE)
                                     ? AUTHENTICATION_NO_MITM : AUTHENTICATION_MITM;
                             mService.writeDescriptor(mClientIf, address, handle,
-                                    authReq, descriptor.getValue(), mAttributionSource);
+                                    authReq, value, mAttributionSource);
                             mAuthRetryState++;
                             return;
                         } catch (RemoteException e) {
@@ -1194,8 +1188,8 @@
      * Reads the requested characteristic from the associated remote device.
      *
      * <p>This is an asynchronous operation. The result of the read operation
-     * is reported by the {@link BluetoothGattCallback#onCharacteristicRead}
-     * callback.
+     * is reported by the {@link BluetoothGattCallback#onCharacteristicRead(BluetoothGatt,
+     * BluetoothGattCharacteristic, byte[], int)} callback.
      *
      * @param characteristic Characteristic to read from the remote device
      * @return true, if the read operation was initiated successfully
@@ -1240,8 +1234,8 @@
      * Reads the characteristic using its UUID from the associated remote device.
      *
      * <p>This is an asynchronous operation. The result of the read operation
-     * is reported by the {@link BluetoothGattCallback#onCharacteristicRead}
-     * callback.
+     * is reported by the {@link BluetoothGattCallback#onCharacteristicRead(BluetoothGatt,
+     * BluetoothGattCharacteristic, byte[], int)} callback.
      *
      * @param uuid UUID of characteristic to read from the remote device
      * @return true, if the read operation was initiated successfully
@@ -1284,40 +1278,94 @@
      *
      * @param characteristic Characteristic to write on the remote device
      * @return true, if the write operation was initiated successfully
+     * @throws IllegalArgumentException if characteristic or its value are null
+     *
+     * @deprecated Use {@link BluetoothGatt#writeCharacteristic(BluetoothGattCharacteristic, byte[],
+     * int)} as this is not memory safe.
      */
+    @Deprecated
     @RequiresLegacyBluetoothPermission
     @RequiresBluetoothConnectPermission
     @RequiresPermission(android.Manifest.permission.BLUETOOTH_CONNECT)
     public boolean writeCharacteristic(BluetoothGattCharacteristic characteristic) {
+        try {
+            return writeCharacteristic(characteristic, characteristic.getValue(),
+                    characteristic.getWriteType()) == BluetoothStatusCodes.SUCCESS;
+        } catch (Exception e) {
+            return false;
+        }
+    }
+
+    /** @hide */
+    @Retention(RetentionPolicy.SOURCE)
+    @IntDef(value = {
+            BluetoothStatusCodes.SUCCESS,
+            BluetoothStatusCodes.ERROR_MISSING_BLUETOOTH_CONNECT_PERMISSION,
+            BluetoothStatusCodes.ERROR_MISSING_BLUETOOTH_PRIVILEGED_PERMISSION,
+            BluetoothStatusCodes.ERROR_DEVICE_NOT_CONNECTED,
+            BluetoothStatusCodes.ERROR_PROFILE_SERVICE_NOT_BOUND,
+            BluetoothStatusCodes.ERROR_GATT_WRITE_NOT_ALLOWED,
+            BluetoothStatusCodes.ERROR_GATT_WRITE_REQUEST_BUSY,
+            BluetoothStatusCodes.ERROR_UNKNOWN
+    })
+    public @interface WriteOperationReturnValues{}
+
+    /**
+     * Writes a given characteristic and its values to the associated remote device.
+     *
+     * <p>Once the write operation has been completed, the
+     * {@link BluetoothGattCallback#onCharacteristicWrite} callback is invoked,
+     * reporting the result of the operation.
+     *
+     * @param characteristic Characteristic to write on the remote device
+     * @return whether the characteristic was successfully written to
+     * @throws IllegalArgumentException if characteristic or value are null
+     */
+    @RequiresBluetoothConnectPermission
+    @RequiresPermission(android.Manifest.permission.BLUETOOTH_CONNECT)
+    @WriteOperationReturnValues
+    public int writeCharacteristic(@NonNull BluetoothGattCharacteristic characteristic,
+            @NonNull byte[] value, int writeType) {
+        if (characteristic == null) {
+            throw new IllegalArgumentException("characteristic must not be null");
+        }
+        if (value == null) {
+            throw new IllegalArgumentException("value must not be null");
+        }
+        if (VDBG) Log.d(TAG, "writeCharacteristic() - uuid: " + characteristic.getUuid());
         if ((characteristic.getProperties() & BluetoothGattCharacteristic.PROPERTY_WRITE) == 0
                 && (characteristic.getProperties()
                 & BluetoothGattCharacteristic.PROPERTY_WRITE_NO_RESPONSE) == 0) {
-            return false;
+            return BluetoothStatusCodes.ERROR_GATT_WRITE_NOT_ALLOWED;
+        }
+        if (mService == null || mClientIf == 0) {
+            return BluetoothStatusCodes.ERROR_PROFILE_SERVICE_NOT_BOUND;
         }
 
-        if (VDBG) Log.d(TAG, "writeCharacteristic() - uuid: " + characteristic.getUuid());
-        if (mService == null || mClientIf == 0 || characteristic.getValue() == null) return false;
-
         BluetoothGattService service = characteristic.getService();
-        if (service == null) return false;
+        if (service == null) {
+            throw new IllegalArgumentException("Characteristic must have a non-null service");
+        }
 
         BluetoothDevice device = service.getDevice();
-        if (device == null) return false;
+        if (device == null) {
+            throw new IllegalArgumentException("Service must have a non-null device");
+        }
 
         synchronized (mDeviceBusyLock) {
             if (mDeviceBusy) {
-                return false;
+                return BluetoothStatusCodes.ERROR_GATT_WRITE_REQUEST_BUSY;
             }
             mDeviceBusy = true;
         }
 
-        int requestStatus = GATT_WRITE_REQUEST_FAIL;
+        int requestStatus = BluetoothStatusCodes.ERROR_UNKNOWN;
         try {
             for (int i = 0; i < WRITE_CHARACTERISTIC_MAX_RETRIES; i++) {
                 requestStatus = mService.writeCharacteristic(mClientIf, device.getAddress(),
-                    characteristic.getInstanceId(), characteristic.getWriteType(),
-                    AUTHENTICATION_NONE, characteristic.getValue(), mAttributionSource);
-                if (requestStatus != GATT_WRITE_REQUEST_BUSY) {
+                        characteristic.getInstanceId(), writeType, AUTHENTICATION_NONE, value,
+                        mAttributionSource);
+                if (requestStatus != BluetoothStatusCodes.ERROR_GATT_WRITE_REQUEST_BUSY) {
                     break;
                 }
                 try {
@@ -1330,10 +1378,10 @@
             synchronized (mDeviceBusyLock) {
                 mDeviceBusy = false;
             }
-            return false;
+            throw e.rethrowFromSystemServer();
         }
 
-        return requestStatus == GATT_WRITE_REQUEST_SUCCESS;
+        return requestStatus;
     }
 
     /**
@@ -1384,45 +1432,86 @@
     /**
      * Write the value of a given descriptor to the associated remote device.
      *
-     * <p>A {@link BluetoothGattCallback#onDescriptorWrite} callback is
-     * triggered to report the result of the write operation.
+     * <p>A {@link BluetoothGattCallback#onDescriptorWrite} callback is triggered to report the
+     * result of the write operation.
      *
      * @param descriptor Descriptor to write to the associated remote device
      * @return true, if the write operation was initiated successfully
+     * @throws IllegalArgumentException if descriptor or its value are null
+     *
+     * @deprecated Use {@link BluetoothGatt#writeDescriptor(BluetoothGattDescriptor, byte[])} as
+     * this is not memory safe.
      */
+    @Deprecated
     @RequiresLegacyBluetoothPermission
     @RequiresBluetoothConnectPermission
     @RequiresPermission(android.Manifest.permission.BLUETOOTH_CONNECT)
     public boolean writeDescriptor(BluetoothGattDescriptor descriptor) {
+        try {
+            return writeDescriptor(descriptor, descriptor.getValue())
+                    == BluetoothStatusCodes.SUCCESS;
+        } catch (Exception e) {
+            return false;
+        }
+    }
+
+    /**
+     * Write the value of a given descriptor to the associated remote device.
+     *
+     * <p>A {@link BluetoothGattCallback#onDescriptorWrite} callback is triggered to report the
+     * result of the write operation.
+     *
+     * @param descriptor Descriptor to write to the associated remote device
+     * @return true, if the write operation was initiated successfully
+     * @throws IllegalArgumentException if descriptor or value are null
+     */
+    @RequiresBluetoothConnectPermission
+    @RequiresPermission(android.Manifest.permission.BLUETOOTH_CONNECT)
+    @WriteOperationReturnValues
+    public int writeDescriptor(@NonNull BluetoothGattDescriptor descriptor,
+            @NonNull byte[] value) {
+        if (descriptor == null) {
+            throw new IllegalArgumentException("descriptor must not be null");
+        }
+        if (value == null) {
+            throw new IllegalArgumentException("value must not be null");
+        }
         if (VDBG) Log.d(TAG, "writeDescriptor() - uuid: " + descriptor.getUuid());
-        if (mService == null || mClientIf == 0 || descriptor.getValue() == null) return false;
+        if (mService == null || mClientIf == 0) {
+            return BluetoothStatusCodes.ERROR_PROFILE_SERVICE_NOT_BOUND;
+        }
 
         BluetoothGattCharacteristic characteristic = descriptor.getCharacteristic();
-        if (characteristic == null) return false;
+        if (characteristic == null) {
+            throw new IllegalArgumentException("Descriptor must have a non-null characteristic");
+        }
 
         BluetoothGattService service = characteristic.getService();
-        if (service == null) return false;
+        if (service == null) {
+            throw new IllegalArgumentException("Characteristic must have a non-null service");
+        }
 
         BluetoothDevice device = service.getDevice();
-        if (device == null) return false;
+        if (device == null) {
+            throw new IllegalArgumentException("Service must have a non-null device");
+        }
 
         synchronized (mDeviceBusyLock) {
-            if (mDeviceBusy) return false;
+            if (mDeviceBusy) return BluetoothStatusCodes.ERROR_GATT_WRITE_REQUEST_BUSY;
             mDeviceBusy = true;
         }
 
         try {
-            mService.writeDescriptor(mClientIf, device.getAddress(), descriptor.getInstanceId(),
-                    AUTHENTICATION_NONE, descriptor.getValue(), mAttributionSource);
+            return mService.writeDescriptor(mClientIf, device.getAddress(),
+                    descriptor.getInstanceId(), AUTHENTICATION_NONE, value, mAttributionSource);
         } catch (RemoteException e) {
             Log.e(TAG, "", e);
             synchronized (mDeviceBusyLock) {
                 mDeviceBusy = false;
             }
-            return false;
+            e.rethrowFromSystemServer();
         }
-
-        return true;
+        return BluetoothStatusCodes.ERROR_UNKNOWN;
     }
 
     /**
@@ -1431,9 +1520,9 @@
      * <p>Once a reliable write transaction has been initiated, all calls
      * to {@link #writeCharacteristic} are sent to the remote device for
      * verification and queued up for atomic execution. The application will
-     * receive an {@link BluetoothGattCallback#onCharacteristicWrite} callback
-     * in response to every {@link #writeCharacteristic} call and is responsible
-     * for verifying if the value has been transmitted accurately.
+     * receive a {@link BluetoothGattCallback#onCharacteristicWrite} callback in response to every
+     * {@link #writeCharacteristic(BluetoothGattCharacteristic, byte[], int)} call and is
+     * responsible for verifying if the value has been transmitted accurately.
      *
      * <p>After all characteristics have been queued up and verified,
      * {@link #executeReliableWrite} will execute all writes. If a characteristic
@@ -1530,9 +1619,9 @@
      * Enable or disable notifications/indications for a given characteristic.
      *
      * <p>Once notifications are enabled for a characteristic, a
-     * {@link BluetoothGattCallback#onCharacteristicChanged} callback will be
-     * triggered if the remote device indicates that the given characteristic
-     * has changed.
+     * {@link BluetoothGattCallback#onCharacteristicChanged(BluetoothGatt,
+     * BluetoothGattCharacteristic, byte[])} callback will be triggered if the remote device
+     * indicates that the given characteristic has changed.
      *
      * @param characteristic The characteristic for which to enable notifications
      * @param enable Set to true to enable notifications/indications
diff --git a/core/java/android/bluetooth/BluetoothGattCallback.java b/core/java/android/bluetooth/BluetoothGattCallback.java
index 1c40cff..d0a5a1e 100644
--- a/core/java/android/bluetooth/BluetoothGattCallback.java
+++ b/core/java/android/bluetooth/BluetoothGattCallback.java
@@ -80,16 +80,34 @@
     /**
      * Callback reporting the result of a characteristic read operation.
      *
-     * @param gatt GATT client invoked {@link BluetoothGatt#readCharacteristic}
+     * @param gatt           GATT client invoked
+     *                       {@link BluetoothGatt#readCharacteristic(BluetoothGattCharacteristic)}
      * @param characteristic Characteristic that was read from the associated remote device.
-     * @param status {@link BluetoothGatt#GATT_SUCCESS} if the read operation was completed
-     * successfully.
+     * @param status         {@link BluetoothGatt#GATT_SUCCESS} if the read operation was completed
+     *                       successfully.
+     * @deprecated Use {@link BluetoothGattCallback#onCharacteristicRead(BluetoothGatt,
+     * BluetoothGattCharacteristic, byte[], int)} as it is memory safe
      */
+    @Deprecated
     public void onCharacteristicRead(BluetoothGatt gatt, BluetoothGattCharacteristic characteristic,
             int status) {
     }
 
     /**
+     * Callback reporting the result of a characteristic read operation.
+     *
+     * @param gatt           GATT client invoked
+     *                       {@link BluetoothGatt#readCharacteristic(BluetoothGattCharacteristic)}
+     * @param characteristic Characteristic that was read from the associated remote device.
+     * @param value          the value of the characteristic
+     * @param status         {@link BluetoothGatt#GATT_SUCCESS} if the read operation was completed
+     *                       successfully.
+     */
+    public void onCharacteristicRead(@NonNull BluetoothGatt gatt, @NonNull
+            BluetoothGattCharacteristic characteristic, @NonNull byte[] value, int status) {
+    }
+
+    /**
      * Callback indicating the result of a characteristic write operation.
      *
      * <p>If this callback is invoked while a reliable write transaction is
@@ -98,10 +116,13 @@
      * value to the desired value to be written. If the values don't match,
      * the application must abort the reliable write transaction.
      *
-     * @param gatt GATT client invoked {@link BluetoothGatt#writeCharacteristic}
+     * @param gatt           GATT client that invoked
+     *                       {@link BluetoothGatt#writeCharacteristic(BluetoothGattCharacteristic,
+     *                       byte[], int)}
      * @param characteristic Characteristic that was written to the associated remote device.
-     * @param status The result of the write operation {@link BluetoothGatt#GATT_SUCCESS} if the
-     * operation succeeds.
+     * @param status         The result of the write operation {@link BluetoothGatt#GATT_SUCCESS} if
+     *                       the
+     *                       operation succeeds.
      */
     public void onCharacteristicWrite(BluetoothGatt gatt,
             BluetoothGattCharacteristic characteristic, int status) {
@@ -110,33 +131,68 @@
     /**
      * Callback triggered as a result of a remote characteristic notification.
      *
-     * @param gatt GATT client the characteristic is associated with
+     * @param gatt           GATT client the characteristic is associated with
      * @param characteristic Characteristic that has been updated as a result of a remote
-     * notification event.
+     *                       notification event.
+     * @deprecated Use {@link BluetoothGattCallback#onCharacteristicChanged(BluetoothGatt,
+     * BluetoothGattCharacteristic, byte[])} as it is memory safe by providing the characteristic
+     * value at the time of notification.
      */
+    @Deprecated
     public void onCharacteristicChanged(BluetoothGatt gatt,
             BluetoothGattCharacteristic characteristic) {
     }
 
     /**
+     * Callback triggered as a result of a remote characteristic notification. Note that the value
+     * within the characteristic object may have changed since receiving the remote characteristic
+     * notification, so check the parameter value for the value at the time of notification.
+     *
+     * @param gatt           GATT client the characteristic is associated with
+     * @param characteristic Characteristic that has been updated as a result of a remote
+     *                       notification event.
+     * @param value          notified characteristic value
+     */
+    public void onCharacteristicChanged(@NonNull BluetoothGatt gatt,
+            @NonNull BluetoothGattCharacteristic characteristic, @NonNull byte[] value) {
+    }
+
+    /**
      * Callback reporting the result of a descriptor read operation.
      *
-     * @param gatt GATT client invoked {@link BluetoothGatt#readDescriptor}
+     * @param gatt       GATT client invoked {@link BluetoothGatt#readDescriptor}
      * @param descriptor Descriptor that was read from the associated remote device.
-     * @param status {@link BluetoothGatt#GATT_SUCCESS} if the read operation was completed
-     * successfully
+     * @param status     {@link BluetoothGatt#GATT_SUCCESS} if the read operation was completed
+     *                   successfully
+     * @deprecated Use {@link BluetoothGattCallback#onDescriptorRead(BluetoothGatt,
+     * BluetoothGattDescriptor, int, byte[])} as it is memory safe by providing the descriptor
+     * value at the time it was read.
      */
+    @Deprecated
     public void onDescriptorRead(BluetoothGatt gatt, BluetoothGattDescriptor descriptor,
             int status) {
     }
 
     /**
+     * Callback reporting the result of a descriptor read operation.
+     *
+     * @param gatt       GATT client invoked {@link BluetoothGatt#readDescriptor}
+     * @param descriptor Descriptor that was read from the associated remote device.
+     * @param status     {@link BluetoothGatt#GATT_SUCCESS} if the read operation was completed
+     *                   successfully
+     * @param value      the descriptor value at the time of the read operation
+     */
+    public void onDescriptorRead(@NonNull BluetoothGatt gatt,
+            @NonNull BluetoothGattDescriptor descriptor, int status, @NonNull byte[] value) {
+    }
+
+    /**
      * Callback indicating the result of a descriptor write operation.
      *
-     * @param gatt GATT client invoked {@link BluetoothGatt#writeDescriptor}
+     * @param gatt       GATT client invoked {@link BluetoothGatt#writeDescriptor}
      * @param descriptor Descriptor that was writte to the associated remote device.
-     * @param status The result of the write operation {@link BluetoothGatt#GATT_SUCCESS} if the
-     * operation succeeds.
+     * @param status     The result of the write operation {@link BluetoothGatt#GATT_SUCCESS} if the
+     *                   operation succeeds.
      */
     public void onDescriptorWrite(BluetoothGatt gatt, BluetoothGattDescriptor descriptor,
             int status) {
diff --git a/core/java/android/bluetooth/BluetoothGattCharacteristic.java b/core/java/android/bluetooth/BluetoothGattCharacteristic.java
index 8a7d4ba..c5e986e 100644
--- a/core/java/android/bluetooth/BluetoothGattCharacteristic.java
+++ b/core/java/android/bluetooth/BluetoothGattCharacteristic.java
@@ -451,8 +451,8 @@
      * Set the write type for this characteristic
      *
      * <p>Setting the write type of a characteristic determines how the
-     * {@link BluetoothGatt#writeCharacteristic} function write this
-     * characteristic.
+     * {@link BluetoothGatt#writeCharacteristic(BluetoothGattCharacteristic, byte[], int)} function
+     * write this characteristic.
      *
      * @param writeType The write type to for this characteristic. Can be one of: {@link
      * #WRITE_TYPE_DEFAULT}, {@link #WRITE_TYPE_NO_RESPONSE} or {@link #WRITE_TYPE_SIGNED}.
@@ -504,7 +504,10 @@
      * operation or if a characteristic update notification has been received.
      *
      * @return Cached value of the characteristic
+     *
+     * @deprecated Use {@link BluetoothGatt#readCharacteristic(BluetoothGattCharacteristic)} instead
      */
+    @Deprecated
     public byte[] getValue() {
         return mValue;
     }
@@ -521,7 +524,11 @@
      * @param formatType The format type used to interpret the characteristic value.
      * @param offset Offset at which the integer value can be found.
      * @return Cached value of the characteristic or null of offset exceeds value size.
+     *
+     * @deprecated Use {@link BluetoothGatt#readCharacteristic(BluetoothGattCharacteristic)} to get
+     * the characteristic value
      */
+    @Deprecated
     public Integer getIntValue(int formatType, int offset) {
         if ((offset + getTypeLen(formatType)) > mValue.length) return null;
 
@@ -558,7 +565,11 @@
      * @param offset Offset at which the float value can be found.
      * @return Cached value of the characteristic at a given offset or null if the requested offset
      * exceeds the value size.
+     *
+     * @deprecated Use {@link BluetoothGatt#readCharacteristic(BluetoothGattCharacteristic)} to get
+     * the characteristic value
      */
+    @Deprecated
     public Float getFloatValue(int formatType, int offset) {
         if ((offset + getTypeLen(formatType)) > mValue.length) return null;
 
@@ -580,7 +591,11 @@
      *
      * @param offset Offset at which the string value can be found.
      * @return Cached value of the characteristic
+     *
+     * @deprecated Use {@link BluetoothGatt#readCharacteristic(BluetoothGattCharacteristic)} to get
+     * the characteristic value
      */
+    @Deprecated
     public String getStringValue(int offset) {
         if (mValue == null || offset > mValue.length) return null;
         byte[] strBytes = new byte[mValue.length - offset];
@@ -599,7 +614,11 @@
      * @param value New value for this characteristic
      * @return true if the locally stored value has been set, false if the requested value could not
      * be stored locally.
+     *
+     * @deprecated Pass the characteristic value directly into
+     * {@link BluetoothGatt#writeCharacteristic(BluetoothGattCharacteristic, byte[], int)}
      */
+    @Deprecated
     public boolean setValue(byte[] value) {
         mValue = value;
         return true;
@@ -613,7 +632,11 @@
      * @param formatType Integer format type used to transform the value parameter
      * @param offset Offset at which the value should be placed
      * @return true if the locally stored value has been set
+     *
+     * @deprecated Pass the characteristic value directly into
+     * {@link BluetoothGatt#writeCharacteristic(BluetoothGattCharacteristic, byte[], int)}
      */
+    @Deprecated
     public boolean setValue(int value, int formatType, int offset) {
         int len = offset + getTypeLen(formatType);
         if (mValue == null) mValue = new byte[len];
@@ -660,7 +683,11 @@
      * @param formatType Float format type used to transform the value parameter
      * @param offset Offset at which the value should be placed
      * @return true if the locally stored value has been set
+     *
+     * @deprecated Pass the characteristic value directly into
+     * {@link BluetoothGatt#writeCharacteristic(BluetoothGattCharacteristic, byte[], int)}
      */
+    @Deprecated
     public boolean setValue(int mantissa, int exponent, int formatType, int offset) {
         int len = offset + getTypeLen(formatType);
         if (mValue == null) mValue = new byte[len];
@@ -697,7 +724,11 @@
      *
      * @param value New value for this characteristic
      * @return true if the locally stored value has been set
+     *
+     * @deprecated Pass the characteristic value directly into
+     * {@link BluetoothGatt#writeCharacteristic(BluetoothGattCharacteristic, byte[], int)}
      */
+    @Deprecated
     public boolean setValue(String value) {
         mValue = value.getBytes();
         return true;
diff --git a/core/java/android/bluetooth/BluetoothGattDescriptor.java b/core/java/android/bluetooth/BluetoothGattDescriptor.java
index ed5ea08..a35d5b9 100644
--- a/core/java/android/bluetooth/BluetoothGattDescriptor.java
+++ b/core/java/android/bluetooth/BluetoothGattDescriptor.java
@@ -260,7 +260,10 @@
      * operation.
      *
      * @return Cached value of the descriptor
+     *
+     * @deprecated  Use {@link BluetoothGatt#readDescriptor(BluetoothGattDescriptor)} instead
      */
+    @Deprecated
     public byte[] getValue() {
         return mValue;
     }
@@ -276,7 +279,11 @@
      * @param value New value for this descriptor
      * @return true if the locally stored value has been set, false if the requested value could not
      * be stored locally.
+     *
+     * @deprecated Pass the descriptor value directly into
+     * {@link BluetoothGatt#writeDescriptor(BluetoothGattDescriptor, byte[])}
      */
+    @Deprecated
     public boolean setValue(byte[] value) {
         mValue = value;
         return true;
diff --git a/core/java/android/bluetooth/BluetoothStatusCodes.java b/core/java/android/bluetooth/BluetoothStatusCodes.java
index 63e84ed..ca01784 100644
--- a/core/java/android/bluetooth/BluetoothStatusCodes.java
+++ b/core/java/android/bluetooth/BluetoothStatusCodes.java
@@ -79,9 +79,31 @@
     public static final int ERROR_MISSING_BLUETOOTH_SCAN_PERMISSION = 7;
 
     /**
+     * Error code indicating that the caller does not have the
+     * {@link android.Manifest.permission#BLUETOOTH_PRIVILEGED} permission
+     */
+    public static final int ERROR_MISSING_BLUETOOTH_PRIVILEGED_PERMISSION = 8;
+
+    /**
+     * Error code indicating that the profile service is not bound. You can bind a profile service
+     * by calling {@link BluetoothAdapter#getProfileProxy}
+     */
+    public static final int ERROR_PROFILE_SERVICE_NOT_BOUND = 9;
+
+    /**
      * Error code indicating that the feature is not supported.
      */
-    public static final int ERROR_FEATURE_NOT_SUPPORTED = 8;
+    public static final int ERROR_FEATURE_NOT_SUPPORTED = 10;
+
+    /**
+     * A GATT writeCharacteristic request is not permitted on the remote device.
+     */
+    public static final int ERROR_GATT_WRITE_NOT_ALLOWED = 101;
+
+    /**
+     * A GATT writeCharacteristic request is issued to a busy remote device.
+     */
+    public static final int ERROR_GATT_WRITE_REQUEST_BUSY = 102;
 
     /**
      * If another application has already requested {@link OobData} then another fetch will be
diff --git a/core/java/android/os/Binder.java b/core/java/android/os/Binder.java
index b677b69..b069fb3 100644
--- a/core/java/android/os/Binder.java
+++ b/core/java/android/os/Binder.java
@@ -53,7 +53,7 @@
  *
  * <p>Most developers will not implement this class directly, instead using the
  * <a href="{@docRoot}guide/components/aidl.html">aidl</a> tool to describe the desired
- * interface, having it generate the appropriate Binder subclass.  You can,
+ * interface, having it generate the appropriate Binder subclass. You can,
  * however, derive directly from Binder to implement your own custom RPC
  * protocol or simply instantiate a raw Binder object directly to use as a
  * token that can be shared across processes.
@@ -63,17 +63,17 @@
  * To use this correctly, you must be doing so within the context of a top-level
  * application component (a {@link android.app.Service}, {@link android.app.Activity},
  * or {@link android.content.ContentProvider}) that lets the system know your process
- * should remain running.</p>
+ * should remain running.
  *
  * <p>You must keep in mind the situations in which your process
  * could go away, and thus require that you later re-create a new Binder and re-attach
- * it when the process starts again.  For example, if you are using this within an
+ * it when the process starts again. For example, if you are using this within an
  * {@link android.app.Activity}, your activity's process may be killed any time the
  * activity is not started; if the activity is later re-created you will need to
  * create a new Binder and hand it back to the correct place again; you need to be
  * aware that your process may be started for another reason (for example to receive
  * a broadcast) that will not involve re-creating the activity and thus run its code
- * to create a new Binder.</p>
+ * to create a new Binder.
  *
  * @see IBinder
  */
@@ -94,14 +94,15 @@
     /**
      * Value to represents that a calling work source is not set.
      *
-     * This constatnt needs to be kept in sync with IPCThreadState::kUnsetWorkSource.
+     * <p>This constant needs to be kept in sync with IPCThreadState::kUnsetWorkSource.
      *
      * @hide
      */
     public static final int UNSET_WORKSOURCE = -1;
 
     /**
-     * Control whether dump() calls are allowed.
+     * Control whether {@link #dump(FileDescriptor, PrintWriter, String[]) dump()}
+     * calls are allowed.
      */
     private static volatile String sDumpDisabled = null;
 
@@ -188,7 +189,7 @@
         sObserver = observer;
     }
 
-    /** {@hide} */
+    /** @hide */
     static volatile boolean sWarnOnBlocking = false;
 
     /**
@@ -207,8 +208,8 @@
     /**
      * Allow blocking calls on the given interface, overriding the requested
      * value of {@link #setWarnOnBlocking(boolean)}.
-     * <p>
-     * This should only be rarely called when you are <em>absolutely sure</em>
+     *
+     * <p>This should only be rarely called when you are <em>absolutely sure</em>
      * the remote interface is a built-in system component that can never be
      * upgraded. In particular, this <em>must never</em> be called for
      * interfaces hosted by package that could be upgraded or replaced,
@@ -258,7 +259,9 @@
             ThreadLocal.withInitial(() -> sWarnOnBlocking);
 
     /**
-     * Allow blocking calls for the current thread.  See {@link #allowBlocking}.
+     * Allow blocking calls for the current thread.
+     *
+     * @see {@link #allowBlocking}.
      *
      * @hide
      */
@@ -267,7 +270,9 @@
     }
 
     /**
-     * Reset the current thread to the default blocking behavior.  See {@link #defaultBlocking}.
+     * Reset the current thread to the default blocking behavior.
+     *
+     * @see {@link #defaultBlocking}.
      *
      * @hide
      */
@@ -286,10 +291,10 @@
 
     /**
      * Return the ID of the process that sent you the current transaction
-     * that is being processed.  This pid can be used with higher-level
+     * that is being processed. This PID can be used with higher-level
      * system services to determine its identity and check permissions.
      * If the current thread is not currently executing an incoming transaction,
-     * then its own pid is returned.
+     * then its own PID is returned.
      *
      * Warning: oneway transactions do not receive PID.
      */
@@ -297,11 +302,11 @@
     public static final native int getCallingPid();
 
     /**
-     * Return the Linux uid assigned to the process that sent you the
-     * current transaction that is being processed.  This uid can be used with
+     * Return the Linux UID assigned to the process that sent you the
+     * current transaction that is being processed. This UID can be used with
      * higher-level system services to determine its identity and check
-     * permissions.  If the current thread is not currently executing an
-     * incoming transaction, then its own uid is returned.
+     * permissions. If the current thread is not currently executing an
+     * incoming transaction, then its own UID is returned.
      */
     @CriticalNative
     public static final native int getCallingUid();
@@ -316,11 +321,11 @@
     public static final native boolean isDirectlyHandlingTransaction();
 
     /**
-     * Return the Linux uid assigned to the process that sent the transaction
+     * Return the Linux UID assigned to the process that sent the transaction
      * currently being processed.
      *
      * @throws IllegalStateException if the current thread is not currently
-     *        executing an incoming transaction.
+     * executing an incoming transaction.
      */
     public static final int getCallingUidOrThrow() {
         if (!isDirectlyHandlingTransaction()) {
@@ -332,18 +337,20 @@
 
     /**
      * Return the UserHandle assigned to the process that sent you the
-     * current transaction that is being processed.  This is the user
-     * of the caller.  It is distinct from {@link #getCallingUid()} in that a
+     * current transaction that is being processed. This is the user
+     * of the caller. It is distinct from {@link #getCallingUid()} in that a
      * particular user will have multiple distinct apps running under it each
-     * with their own uid.  If the current thread is not currently executing an
+     * with their own UID. If the current thread is not currently executing an
      * incoming transaction, then its own UserHandle is returned.
+     *
+     * @see UserHandle
      */
     public static final @NonNull UserHandle getCallingUserHandle() {
         return UserHandle.of(UserHandle.getUserId(getCallingUid()));
     }
 
     /**
-     * Reset the identity of the incoming IPC on the current thread.  This can
+     * Reset the identity of the incoming IPC on the current thread. This can
      * be useful if, while handling an incoming call, you will be calling
      * on interfaces of other objects that may be local to your process and
      * need to do permission checks on the calls coming into them (so they
@@ -376,10 +383,10 @@
 
     /**
      * Convenience method for running the provided action enclosed in
-     * {@link #clearCallingIdentity}/{@link #restoreCallingIdentity}
+     * {@link #clearCallingIdentity}/{@link #restoreCallingIdentity}.
      *
-     * Any exception thrown by the given action will be caught and rethrown after the call to
-     * {@link #restoreCallingIdentity}
+     * <p>Any exception thrown by the given action will be caught and
+     * rethrown after the call to {@link #restoreCallingIdentity}.
      *
      * @hide
      */
@@ -400,10 +407,10 @@
 
     /**
      * Convenience method for running the provided action enclosed in
-     * {@link #clearCallingIdentity}/{@link #restoreCallingIdentity} returning the result
+     * {@link #clearCallingIdentity}/{@link #restoreCallingIdentity} returning the result.
      *
-     * Any exception thrown by the given action will be caught and rethrown after the call to
-     * {@link #restoreCallingIdentity}
+     * <p>Any exception thrown by the given action will be caught and rethrown after
+     * the call to {@link #restoreCallingIdentity}.
      *
      * @hide
      */
@@ -428,12 +435,13 @@
      *
      * <p>The StrictMode settings are kept in two places: a Java-level
      * threadlocal for libcore/Dalvik, and a native threadlocal (set
-     * here) for propagation via Binder calls.  This is a little
+     * here) for propagation via Binder calls. This is a little
      * unfortunate, but necessary to break otherwise more unfortunate
      * dependencies either of Dalvik on Android, or Android
      * native-only code on Dalvik.
      *
      * @see StrictMode
+     *
      * @hide
      */
     @CriticalNative
@@ -443,6 +451,7 @@
      * Gets the current native thread-local StrictMode policy mask.
      *
      * @see #setThreadStrictModePolicy
+     *
      * @hide
      */
     @CriticalNative
@@ -459,7 +468,7 @@
      * reasons, we only support one UID. This UID represents the original user responsible for the
      * binder calls.
      *
-     * <p>{@link Binder#restoreCallingWorkSource(long)} must always be called after setting the
+     * <p>{@link #restoreCallingWorkSource(long)} must always be called after setting the
      * worksource.
      *
      * <p>A typical use case would be
@@ -477,16 +486,16 @@
      *
      * @param workSource The original UID responsible for the binder call.
      * @return token to restore original work source.
-     **/
+     */
     @CriticalNative
     public static final native long setCallingWorkSourceUid(int workSource);
 
     /**
      * Returns the work source set by the caller.
      *
-     * Unlike {@link Binder#getCallingUid()}, this result of this method cannot be trusted. The
+     * <p>Unlike {@link #getCallingUid()}, this result of this method cannot be trusted. The
      * caller can set the value to whatever they want. Only use this value if you trust the calling
-     * uid.
+     * UID.
      *
      * @return The original UID responsible for the binder transaction.
      */
@@ -499,7 +508,7 @@
      * <p>The work source will be propagated for future outgoing binder transactions
      * executed on this thread.
      *
-     * <p>{@link Binder#restoreCallingWorkSource(long)} must always be called after clearing the
+     * <p>{@link #restoreCallingWorkSource(long)} must always be called after clearing the
      * worksource.
      *
      * <p>A typical use case would be
@@ -513,13 +522,13 @@
      * </pre>
      *
      * @return token to restore original work source.
-     **/
+     */
     @CriticalNative
     public static final native long clearCallingWorkSource();
 
     /**
      * Restores the work source on this thread using a token returned by
-     * {@link #setCallingWorkSourceUid(int) or {@link clearCallingWorkSource()}.
+     * {@link #setCallingWorkSourceUid(int)} or {@link #clearCallingWorkSource()}.
      *
      * <p>A typical use case would be
      * <pre>
@@ -530,7 +539,7 @@
      *   Binder.restoreCallingWorkSource(token);
      * }
      * </pre>
-     **/
+     */
     @CriticalNative
     public static final native void restoreCallingWorkSource(long token);
 
@@ -553,7 +562,7 @@
      * Use a VINTF-stability binder w/o VINTF requirements. Should be called
      * on a binder before it is sent out of process.
      *
-     * This must be called before the object is sent to another process.
+     * <p>This must be called before the object is sent to another process.
      *
      * @hide
      */
@@ -561,7 +570,7 @@
 
     /**
      * Flush any Binder commands pending in the current thread to the kernel
-     * driver.  This can be
+     * driver. This can be
      * useful to call before performing an operation that may block for a long
      * time, to ensure that any pending object references have been released
      * in order to prevent the process from holding on to objects longer than
@@ -570,7 +579,7 @@
     public static final native void flushPendingCommands();
 
     /**
-     * Add the calling thread to the IPC thread pool.  This function does
+     * Add the calling thread to the IPC thread pool. This function does
      * not return until the current process is exiting.
      */
     public static final void joinThreadPool() {
@@ -579,6 +588,7 @@
 
     /**
      * Returns true if the specified interface is a proxy.
+     *
      * @hide
      */
     public static final boolean isProxy(IInterface iface) {
@@ -588,6 +598,7 @@
     /**
      * Call blocks until the number of executing binder threads is less
      * than the maximum number of binder threads allowed for this process.
+     *
      * @hide
      */
     public static final native void blockUntilThreadAvailable();
@@ -595,7 +606,7 @@
     /**
      * Default constructor just initializes the object.
      *
-     * If you're creating a Binder token (a Binder object without an attached interface),
+     * <p>If you're creating a Binder token (a Binder object without an attached interface),
      * you should use {@link #Binder(String)} instead.
      */
     public Binder() {
@@ -605,7 +616,7 @@
     /**
      * Constructor for creating a raw Binder object (token) along with a descriptor.
      *
-     * The descriptor of binder objects usually specifies the interface they are implementing.
+     * <p>The descriptor of binder objects usually specifies the interface they are implementing.
      * In case of binder tokens, no interface is implemented, and the descriptor can be used
      * as a sort of tag to help identify the binder token. This will help identify remote
      * references to these objects more easily when debugging.
@@ -614,7 +625,7 @@
      * Instead of creating multiple tokens with the same descriptor, consider adding a suffix to
      * help identify them.
      */
-    public Binder(@Nullable String descriptor)  {
+    public Binder(@Nullable String descriptor) {
         mObject = getNativeBBinderHolder();
         NoImagePreloadHolder.sRegistry.registerNativeAllocation(this, mObject);
 
@@ -631,9 +642,9 @@
 
     /**
      * Convenience method for associating a specific interface with the Binder.
-     * After calling, queryLocalInterface() will be implemented for you
-     * to return the given owner IInterface when the corresponding
-     * descriptor is requested.
+     * After calling, {@link #queryLocalInterface(String) queryLocalInterface()}
+     * will be implemented for you to return the given owner IInterface when
+     * the corresponding descriptor is requested.
      */
     public void attachInterface(@Nullable IInterface owner, @Nullable String descriptor) {
         mOwner = owner;
@@ -666,8 +677,8 @@
     }
 
     /**
-     * Use information supplied to attachInterface() to return the
-     * associated IInterface if it matches the requested
+     * Use information supplied to {@link #attachInterface attachInterface()}
+     * to return the associated {@link IInterface} if it matches the requested
      * descriptor.
      */
     public @Nullable IInterface queryLocalInterface(@NonNull String descriptor) {
@@ -678,14 +689,15 @@
     }
 
     /**
-     * Control disabling of dump calls in this process.  This is used by the system
+     * Control disabling of dump calls in this process. This is used by the system
      * process watchdog to disable incoming dump calls while it has detecting the system
-     * is hung and is reporting that back to the activity controller.  This is to
+     * is hung and is reporting that back to the activity controller. This is to
      * prevent the controller from getting hung up on bug reports at this point.
-     * @hide
      *
      * @param msg The message to show instead of the dump; if null, dumps are
      * re-enabled.
+     *
+     * @hide
      */
     public static void setDumpDisabled(String msg) {
         sDumpDisabled = msg;
@@ -694,7 +706,8 @@
     /**
      * Listener to be notified about each proxy-side binder call.
      *
-     * See {@link setProxyTransactListener}.
+     * @see {@link #setProxyTransactListener}.
+     *
      * @hide
      */
     @SystemApi
@@ -702,7 +715,8 @@
         /**
          * Called before onTransact.
          *
-         * @return an object that will be passed back to #onTransactEnded (or null).
+         * @return an object that will be passed back to {@link #onTransactEnded} (or null).,
+         *
          * @hide
          */
         @Nullable
@@ -713,15 +727,15 @@
         /**
          * Called before onTransact.
          *
-         * @return an object that will be passed back to #onTransactEnded (or null).
+         * @return an object that will be passed back to {@link #onTransactEnded} (or null).
          */
         @Nullable
         Object onTransactStarted(@NonNull IBinder binder, int transactionCode);
 
         /**
-         * Called after onTranact (even when an exception is thrown).
+         * Called after onTransact (even when an exception is thrown).
          *
-         * @param session The object return by #onTransactStarted.
+         * @param session The object return by {@link #onTransactStarted}.
          */
         void onTransactEnded(@Nullable Object session);
     }
@@ -732,16 +746,17 @@
      * <li>By default, this listener will propagate the worksource if the outgoing call happens on
      * the same thread as the incoming binder call.
      * <li>Custom attribution can be done by calling {@link ThreadLocalWorkSource#setUid(int)}.
+     *
      * @hide
      */
     public static class PropagateWorkSourceTransactListener implements ProxyTransactListener {
         @Override
         public Object onTransactStarted(IBinder binder, int transactionCode) {
-           // Note that {@link Binder#getCallingUid()} is already set to the UID of the current
-           // process when this method is called.
-           //
-           // We use ThreadLocalWorkSource instead. It also allows feature owners to set
-           // {@link ThreadLocalWorkSource#set(int) manually to attribute resources to a UID.
+            // Note that {@link #getCallingUid()} is already set to the UID of the current
+            // process when this method is called.
+            //
+            // We use {@link ThreadLocalWorkSource} instead. It also allows feature owners to set
+            // {@link ThreadLocalWorkSource#set(int)} manually to attribute resources to a UID.
             int uid = ThreadLocalWorkSource.getUid();
             if (uid != ThreadLocalWorkSource.UID_NONE) {
                 return Binder.setCallingWorkSourceUid(uid);
@@ -770,6 +785,7 @@
      * <li>The listener is called on the critical path of the binder transaction so be careful about
      * performance.
      * <li>Never execute another binder transaction inside the listener.
+     *
      * @hide
      */
     @SystemApi
@@ -778,7 +794,7 @@
     }
 
     /**
-     * Default implementation is a stub that returns false.  You will want
+     * Default implementation is a stub that returns false. You will want
      * to override this to do the appropriate unmarshalling of transactions.
      *
      * <p>If you want to call this, call transact().
@@ -786,15 +802,14 @@
      * <p>Implementations that are returning a result should generally use
      * {@link Parcel#writeNoException() Parcel.writeNoException} and
      * {@link Parcel#writeException(Exception) Parcel.writeException} to propagate
-     * exceptions back to the caller.</p>
+     * exceptions back to the caller.
      *
-     * @param code The action to perform.  This should
-     * be a number between {@link #FIRST_CALL_TRANSACTION} and
-     * {@link #LAST_CALL_TRANSACTION}.
+     * @param code The action to perform. This should be a number between
+     * {@link #FIRST_CALL_TRANSACTION} and {@link #LAST_CALL_TRANSACTION}.
      * @param data Marshalled data being received from the caller.
      * @param reply If the caller is expecting a result back, it should be marshalled
      * in to here.
-     * @param flags Additional operation flags.  Either 0 for a normal
+     * @param flags Additional operation flags. Either 0 for a normal
      * RPC, or {@link #FLAG_ONEWAY} for a one-way RPC.
      *
      * @return Return true on a successful call; returning false is generally used to
@@ -856,10 +871,12 @@
      * Resolves a transaction code to a human readable name.
      *
      * <p>Default implementation is a stub that returns null.
+     *
      * <p>AIDL generated code will return the original method name.
      *
      * @param transactionCode The code to resolve.
      * @return A human readable name.
+     *
      * @hide
      */
     public @Nullable String getTransactionName(int transactionCode) {
@@ -925,7 +942,7 @@
      * Print the object's state into the given stream.
      *
      * @param fd The raw file descriptor that the dump is being sent to.
-     * @param fout The file to which you should dump your state.  This will be
+     * @param fout The file to which you should dump your state. This will be
      * closed for you after you return.
      * @param args additional arguments to the dump request.
      */
@@ -941,6 +958,7 @@
      * @param callback Callback through which to interact with the invoking shell.
      * @param resultReceiver Called when the command has finished executing, with the result code.
      * @throws RemoteException
+     *
      * @hide
      */
     public void shellCommand(@Nullable FileDescriptor in, @Nullable FileDescriptor out,
@@ -958,7 +976,8 @@
      *
      * <p class="caution">Note: no permission checking is done before calling this method; you must
      * apply any security checks as appropriate for the command being executed.
-     * Consider using {@link ShellCommand} to help in the implementation.</p>
+     * Consider using {@link ShellCommand} to help in the implementation.
+     *
      * @hide
      */
     public void onShellCommand(@Nullable FileDescriptor in, @Nullable FileDescriptor out,
@@ -1013,7 +1032,7 @@
      * System services can implement this method to implement ADB shell commands.
      *
      * <p>A system binder service can implement it to handle shell commands on ADB. For example,
-     * the Job Scheduler service implements it to handle <code>adb shell cmd jobscheduler</code>.
+     * the Job Scheduler service implements it to handle {@code adb shell cmd jobscheduler}.
      *
      * <p>Commands are only executable by ADB shell; i.e. only {@link Process#SHELL_UID} and
      * {@link Process#ROOT_UID} can call them.
@@ -1022,8 +1041,8 @@
      * @param out standard output
      * @param err standard error
      * @param args arguments passed to the command. Can be empty. The first argument is typically
-     *             a subcommand, such as {@code run} for {@code adb shell cmd jobscheduler run}.
-     * @return the status code returned from the <code>cmd</code> command.
+     * a subcommand, such as {@code run} for {@code adb shell cmd jobscheduler run}.
+     * @return the status code returned from the {@code cmd} command.
      *
      * @hide
      */
@@ -1051,7 +1070,7 @@
     public final native void setExtension(@Nullable IBinder extension);
 
     /**
-     * Default implementation rewinds the parcels and calls onTransact.  On
+     * Default implementation rewinds the parcels and calls onTransact. On
      * the remote side, transact calls into the binder to do the IPC.
      */
     public final boolean transact(int code, @NonNull Parcel data, @Nullable Parcel reply,
@@ -1083,7 +1102,7 @@
 
     static void checkParcel(IBinder obj, int code, Parcel parcel, String msg) {
         if (CHECK_PARCEL_SIZE && parcel.dataSize() >= 800*1024) {
-            // Trying to send > 800k, this is way too much
+            // Trying to send > 800k, this is way too much.
             StringBuilder sb = new StringBuilder();
             sb.append(msg);
             sb.append(": on ");
@@ -1107,7 +1126,7 @@
     private static native long getNativeBBinderHolder();
 
     /**
-     * By default, we use the calling uid since we can always trust it.
+     * By default, we use the calling UID since we can always trust it.
      */
     private static volatile BinderInternal.WorkSourceProvider sWorkSourceProvider =
             (x) -> Binder.getCallingUid();
@@ -1122,6 +1141,7 @@
      * <li>The callback is called on the critical path of the binder transaction so be careful about
      * performance.
      * <li>Never execute another binder transaction inside the callback.
+     *
      * @hide
      */
     public static void setWorkSourceProvider(BinderInternal.WorkSourceProvider workSourceProvider) {
@@ -1131,12 +1151,12 @@
         sWorkSourceProvider = workSourceProvider;
     }
 
-    // Entry point from android_util_Binder.cpp's onTransact
+    // Entry point from android_util_Binder.cpp's onTransact.
     @UnsupportedAppUsage
     private boolean execTransact(int code, long dataObj, long replyObj,
             int flags) {
         // At that point, the parcel request headers haven't been parsed so we do not know what
-        // WorkSource the caller has set. Use calling uid as the default.
+        // {@link WorkSource} the caller has set. Use calling UID as the default.
         final int callingUid = Binder.getCallingUid();
         final long origWorkSource = ThreadLocalWorkSource.setUid(callingUid);
         try {
@@ -1154,17 +1174,18 @@
                 observer != null ? observer.callStarted(this, code, UNSET_WORKSOURCE) : null;
         Parcel data = Parcel.obtain(dataObj);
         Parcel reply = Parcel.obtain(replyObj);
-        // theoretically, we should call transact, which will call onTransact,
+        // Theoretically, we should call transact, which will call onTransact,
         // but all that does is rewind it, and we just got these from an IPC,
         // so we'll just call it directly.
         boolean res;
         // Log any exceptions as warnings, don't silently suppress them.
-        // If the call was FLAG_ONEWAY then these exceptions disappear into the ether.
+        // If the call was {@link IBinder#FLAG_ONEWAY} then these exceptions
+        // disappear into the ether.
         final boolean tracingEnabled = Binder.isTracingEnabled();
         try {
             final BinderCallHeavyHitterWatcher heavyHitterWatcher = sHeavyHitterWatcher;
             if (heavyHitterWatcher != null) {
-                // Notify the heavy hitter watcher, if it's enabled
+                // Notify the heavy hitter watcher, if it's enabled.
                 heavyHitterWatcher.onTransaction(callingUid, getClass(), code);
             }
             if (tracingEnabled) {
@@ -1197,7 +1218,7 @@
                     Log.w(TAG, "Caught a RuntimeException from the binder stub implementation.", e);
                 }
             } else {
-                // Clear the parcel before writing the exception
+                // Clear the parcel before writing the exception.
                 reply.setDataSize(0);
                 reply.setDataPosition(0);
                 reply.writeException(e);
@@ -1209,7 +1230,7 @@
             }
             if (observer != null) {
                 // The parcel RPC headers have been called during onTransact so we can now access
-                // the worksource uid from the parcel.
+                // the worksource UID from the parcel.
                 final int workSourceUid = sWorkSourceProvider.resolveWorkSourceUid(
                         data.readCallingWorkSourceUid());
                 observer.callEnded(callSession, data.dataSize(), reply.dataSize(), workSourceUid);
@@ -1220,9 +1241,9 @@
         data.recycle();
 
         // Just in case -- we are done with the IPC, so there should be no more strict
-        // mode violations that have gathered for this thread.  Either they have been
+        // mode violations that have gathered for this thread. Either they have been
         // parceled and are now in transport off to the caller, or we are returning back
-        // to the main transaction loop to wait for another incoming transaction.  Either
+        // to the main transaction loop to wait for another incoming transaction. Either
         // way, strict mode begone!
         StrictMode.clearGatheredViolations();
         return res;
diff --git a/core/java/android/os/Bundle.java b/core/java/android/os/Bundle.java
index 92eb7a5..feca81e 100644
--- a/core/java/android/os/Bundle.java
+++ b/core/java/android/os/Bundle.java
@@ -324,28 +324,10 @@
      */
     public boolean hasFileDescriptors() {
         if ((mFlags & FLAG_HAS_FDS_KNOWN) == 0) {
-            boolean fdFound = false;    // keep going until we find one or run out of data
-
-            if (mParcelledData != null) {
-                if (mParcelledData.hasFileDescriptors()) {
-                    fdFound = true;
-                }
-            } else {
-                // It's been unparcelled, so we need to walk the map
-                for (int i=mMap.size()-1; i>=0; i--) {
-                    Object obj = mMap.valueAt(i);
-                    if (Parcel.hasFileDescriptors(obj)) {
-                        fdFound = true;
-                        break;
-                    }
-                }
-            }
-
-            if (fdFound) {
-                mFlags |= FLAG_HAS_FDS;
-            } else {
-                mFlags &= ~FLAG_HAS_FDS;
-            }
+            Parcel p = mParcelledData;
+            mFlags = (Parcel.hasFileDescriptors((p != null) ? p : mMap))
+                    ? mFlags | FLAG_HAS_FDS
+                    : mFlags & ~FLAG_HAS_FDS;
             mFlags |= FLAG_HAS_FDS_KNOWN;
         }
         return (mFlags & FLAG_HAS_FDS) != 0;
diff --git a/core/java/android/os/Parcel.java b/core/java/android/os/Parcel.java
index dd0cb8c..d1e6716 100644
--- a/core/java/android/os/Parcel.java
+++ b/core/java/android/os/Parcel.java
@@ -747,57 +747,70 @@
     }
 
     /**
-     * Check if the object used in {@link #readValue(ClassLoader)} / {@link #writeValue(Object)}
-     * has file descriptors.
+     * Check if the object has file descriptors.
+     *
+     * <p>Objects supported are {@link Parcel} and objects that can be passed to {@link
+     * #writeValue(Object)}}
      *
      * <p>For most cases, it will use the self-reported {@link Parcelable#describeContents()} method
      * for that.
      *
-     * @throws IllegalArgumentException if you provide any object not supported by above methods.
-     *         Most notably, if you pass {@link Parcel}, this method will throw, for that check
-     *         {@link Parcel#hasFileDescriptors()}
+     * @throws IllegalArgumentException if you provide any object not supported by above methods
+     *     (including if the unsupported object is inside a nested container).
      *
      * @hide
      */
     public static boolean hasFileDescriptors(Object value) {
-        if (value instanceof LazyValue) {
-            return ((LazyValue) value).hasFileDescriptors();
-        } else if (value instanceof Parcelable) {
-            if ((((Parcelable) value).describeContents()
-                    & Parcelable.CONTENTS_FILE_DESCRIPTOR) != 0) {
+        if (value instanceof Parcel) {
+            Parcel parcel = (Parcel) value;
+            if (parcel.hasFileDescriptors()) {
                 return true;
             }
-        } else if (value instanceof Parcelable[]) {
-            Parcelable[] array = (Parcelable[]) value;
-            for (int n = array.length - 1; n >= 0; n--) {
-                Parcelable p = array[n];
-                if (p != null && ((p.describeContents()
-                        & Parcelable.CONTENTS_FILE_DESCRIPTOR) != 0)) {
+        } else if (value instanceof LazyValue) {
+            LazyValue lazy = (LazyValue) value;
+            if (lazy.hasFileDescriptors()) {
+                return true;
+            }
+        } else if (value instanceof Parcelable) {
+            Parcelable parcelable = (Parcelable) value;
+            if ((parcelable.describeContents() & Parcelable.CONTENTS_FILE_DESCRIPTOR) != 0) {
+                return true;
+            }
+        } else if (value instanceof ArrayMap<?, ?>) {
+            ArrayMap<?, ?> map = (ArrayMap<?, ?>) value;
+            for (int i = 0, n = map.size(); i < n; i++) {
+                if (hasFileDescriptors(map.keyAt(i))
+                        || hasFileDescriptors(map.valueAt(i))) {
+                    return true;
+                }
+            }
+        } else if (value instanceof Map<?, ?>) {
+            Map<?, ?> map = (Map<?, ?>) value;
+            for (Map.Entry<?, ?> entry : map.entrySet()) {
+                if (hasFileDescriptors(entry.getKey())
+                        || hasFileDescriptors(entry.getValue())) {
+                    return true;
+                }
+            }
+        } else if (value instanceof List<?>) {
+            List<?> list = (List<?>) value;
+            for (int i = 0, n = list.size(); i < n; i++) {
+                if (hasFileDescriptors(list.get(i))) {
                     return true;
                 }
             }
         } else if (value instanceof SparseArray<?>) {
             SparseArray<?> array = (SparseArray<?>) value;
-            for (int n = array.size() - 1; n >= 0; n--) {
-                Object object = array.valueAt(n);
-                if (object instanceof Parcelable) {
-                    Parcelable p = (Parcelable) object;
-                    if (p != null && (p.describeContents()
-                            & Parcelable.CONTENTS_FILE_DESCRIPTOR) != 0) {
-                        return true;
-                    }
+            for (int i = 0, n = array.size(); i < n; i++) {
+                if (hasFileDescriptors(array.valueAt(i))) {
+                    return true;
                 }
             }
-        } else if (value instanceof ArrayList<?>) {
-            ArrayList<?> array = (ArrayList<?>) value;
-            for (int n = array.size() - 1; n >= 0; n--) {
-                Object object = array.get(n);
-                if (object instanceof Parcelable) {
-                    Parcelable p = (Parcelable) object;
-                    if (p != null && ((p.describeContents()
-                            & Parcelable.CONTENTS_FILE_DESCRIPTOR) != 0)) {
-                        return true;
-                    }
+        } else if (value instanceof Object[]) {
+            Object[] array = (Object[]) value;
+            for (int i = 0, n = array.length; i < n; i++) {
+                if (hasFileDescriptors(array[i])) {
+                    return true;
                 }
             }
         } else {
diff --git a/core/java/android/permission/DEFAULT_PERMISSION_GRANT_POLICY_OWNERS b/core/java/android/permission/DEFAULT_PERMISSION_GRANT_POLICY_OWNERS
new file mode 100644
index 0000000..cb521c8
--- /dev/null
+++ b/core/java/android/permission/DEFAULT_PERMISSION_GRANT_POLICY_OWNERS
@@ -0,0 +1,8 @@
+ewol@google.com
+hackbod@google.com
+jsharkey@google.com
+narayan@google.com
+patb@google.com
+svetoslavganov@google.com
+yamasani@google.com
+zhanghai@google.com
diff --git a/core/java/android/telephony/PhoneStateListener.java b/core/java/android/telephony/PhoneStateListener.java
index d39b56d..5b9d69c 100644
--- a/core/java/android/telephony/PhoneStateListener.java
+++ b/core/java/android/telephony/PhoneStateListener.java
@@ -191,20 +191,6 @@
     public static final int LISTEN_SIGNAL_STRENGTHS                         = 0x00000100;
 
     /**
-     * Listen for changes of the network signal strengths (cellular) always reported from modem,
-     * even in some situations such as the screen of the device is off.
-     *
-     * @see #onSignalStrengthsChanged
-     *
-     * @hide
-     * @deprecated Use TelephonyManager#setSignalStrengthUpdateRequest
-     * instead.
-     */
-    @Deprecated
-    @RequiresPermission(android.Manifest.permission.LISTEN_ALWAYS_REPORTED_SIGNAL_STRENGTH)
-    public static final int LISTEN_ALWAYS_REPORTED_SIGNAL_STRENGTH          = 0x00000200;
-
-    /**
      * Listen for changes to observed cell info.
      *
      * Listening to this event requires the {@link Manifest.permission#READ_PHONE_STATE} and
diff --git a/core/java/android/telephony/TelephonyRegistryManager.java b/core/java/android/telephony/TelephonyRegistryManager.java
index bedad73..cb1cff9 100644
--- a/core/java/android/telephony/TelephonyRegistryManager.java
+++ b/core/java/android/telephony/TelephonyRegistryManager.java
@@ -1041,10 +1041,6 @@
             eventList.add(TelephonyCallback.EVENT_SIGNAL_STRENGTHS_CHANGED);
         }
 
-        if ((eventMask & PhoneStateListener.LISTEN_ALWAYS_REPORTED_SIGNAL_STRENGTH) != 0) {
-            eventList.add(TelephonyCallback.EVENT_ALWAYS_REPORTED_SIGNAL_STRENGTH_CHANGED);
-        }
-
         if ((eventMask & PhoneStateListener.LISTEN_CELL_INFO) != 0) {
             eventList.add(TelephonyCallback.EVENT_CELL_INFO_CHANGED);
         }
diff --git a/core/res/AndroidManifest.xml b/core/res/AndroidManifest.xml
index 1418dbe..d727a55 100644
--- a/core/res/AndroidManifest.xml
+++ b/core/res/AndroidManifest.xml
@@ -252,6 +252,11 @@
         android:name="com.android.bluetooth.BluetoothMapContentObserver.action.MESSAGE_DELIVERY" />
     <protected-broadcast
         android:name="android.bluetooth.pan.profile.action.CONNECTION_STATE_CHANGED" />
+    <protected-broadcast android:name="android.bluetooth.action.LE_AUDIO_CONNECTION_STATE_CHANGED" />
+    <protected-broadcast android:name="android.bluetooth.action.LE_AUDIO_ACTIVE_DEVICE_CHANGED" />
+    <protected-broadcast android:name="android.bluetooth.action.LE_AUDIO_CONF_CHANGED" />
+    <protected-broadcast android:name="android.bluetooth.action.LE_AUDIO_GROUP_NODE_STATUS_CHANGED" />
+    <protected-broadcast android:name="android.bluetooth.action.LE_AUDIO_GROUP_STATUS_CHANGED" />
     <protected-broadcast
         android:name="android.bluetooth.action.TETHERING_STATE_CHANGED" />
     <protected-broadcast android:name="android.bluetooth.pbap.profile.action.CONNECTION_STATE_CHANGED" />
@@ -2394,7 +2399,7 @@
     <permission android:name="android.permission.READ_ACTIVE_EMERGENCY_SESSION"
         android:protectionLevel="signature" />
 
-    <!-- Allows listen permission to always reported signal strength.
+    <!-- Allows listen permission to always reported system signal strength.
          @hide Used internally. -->
     <permission android:name="android.permission.LISTEN_ALWAYS_REPORTED_SIGNAL_STRENGTH"
         android:protectionLevel="signature" />
diff --git a/core/res/res/values/config.xml b/core/res/res/values/config.xml
index 7db2fe9..8496a47 100644
--- a/core/res/res/values/config.xml
+++ b/core/res/res/values/config.xml
@@ -5054,4 +5054,7 @@
 
     <!-- the number of the max cached processes in the system. -->
     <integer name="config_customizedMaxCachedProcesses">32</integer>
+
+    <!-- Whether this device should support taking app snapshots on closure -->
+    <bool name="config_disableTaskSnapshots">false</bool>
 </resources>
diff --git a/core/res/res/values/symbols.xml b/core/res/res/values/symbols.xml
index 1c44526..d06dafe 100644
--- a/core/res/res/values/symbols.xml
+++ b/core/res/res/values/symbols.xml
@@ -4403,7 +4403,7 @@
   <java-symbol type="string" name="view_and_control_notification_title" />
   <java-symbol type="string" name="view_and_control_notification_content" />
   <java-symbol type="array" name="config_accessibility_allowed_install_source" />
-  
+
   <!-- Translation -->
   <java-symbol type="string" name="ui_translation_accessibility_translated_text" />
   <java-symbol type="string" name="ui_translation_accessibility_translation_finished" />
@@ -4430,4 +4430,7 @@
   <java-symbol type="array" name="config_sharedLibrariesLoadedAfterApp" />
 
   <java-symbol type="integer" name="config_customizedMaxCachedProcesses" />
+
+  <java-symbol type="bool" name="config_disableTaskSnapshots" />
+
 </resources>
diff --git a/graphics/java/android/graphics/HardwareRenderer.java b/graphics/java/android/graphics/HardwareRenderer.java
index c3b1cd74..b61ae12 100644
--- a/graphics/java/android/graphics/HardwareRenderer.java
+++ b/graphics/java/android/graphics/HardwareRenderer.java
@@ -22,6 +22,7 @@
 import android.annotation.Nullable;
 import android.app.Activity;
 import android.app.ActivityManager;
+import android.compat.annotation.UnsupportedAppUsage;
 import android.content.Context;
 import android.content.pm.ActivityInfo;
 import android.content.res.Configuration;
@@ -1075,6 +1076,53 @@
         ProcessInitializer.sInstance.setContext(context);
     }
 
+    /**
+     * Returns true if HardwareRender will produce output.
+     *
+     * This value is global to the process and affects all uses of HardwareRenderer,
+     * including
+     * those created by the system such as those used by the View tree when using hardware
+     * accelerated rendering.
+     *
+     * Default is true in all production environments, but may be false in testing-focused
+     * emulators or if {@link #setDrawingEnabled(boolean)} is used.
+     *
+     * Backported from android T.
+     *
+     * @hide
+     */
+    @UnsupportedAppUsage
+    public static boolean isDrawingEnabled() {
+        return nIsDrawingEnabled();
+    }
+
+    /**
+     * Toggles whether or not HardwareRenderer will produce drawing output globally in the current
+     * process.
+     *
+     * This applies to all HardwareRenderer instances, including those created by the platform such
+     * as those used by the system for hardware accelerated View rendering.
+     *
+     * The capability to disable drawing output is intended for test environments, primarily
+     * headless ones. By setting this to false, tests that launch activities or interact with Views
+     * can be quicker with less RAM usage by skipping the final step of View drawing. All View
+     * lifecycle events will occur as normal, only the final step of rendering on the GPU to the
+     * display will be skipped.
+     *
+     * This can be toggled on and off at will, so screenshot tests can also run in this same
+     * environment by toggling drawing back on and forcing a frame to be drawn such as by calling
+     * view#invalidate(). Once drawn and the screenshot captured, this can then be turned back off.
+     *
+     * Backported from android T.
+     *
+     * @hide
+     */
+    // TODO: Add link to androidx's Screenshot library for help with this
+    @UnsupportedAppUsage
+    public static void setDrawingEnabled(boolean drawingEnabled) {
+        nSetDrawingEnabled(drawingEnabled);
+    }
+
     private static final class DestroyContextRunnable implements Runnable {
         private final long mNativeInstance;
 
@@ -1393,4 +1441,8 @@
 
     private static native void nInitDisplayInfo(int width, int height, float refreshRate,
             int wideColorDataspace, long appVsyncOffsetNanos, long presentationDeadlineNanos);
+
+    private static native void nSetDrawingEnabled(boolean drawingEnabled);
+
+    private static native boolean nIsDrawingEnabled();
 }
diff --git a/libs/hwui/Properties.cpp b/libs/hwui/Properties.cpp
index b8fa55a..c804418 100644
--- a/libs/hwui/Properties.cpp
+++ b/libs/hwui/Properties.cpp
@@ -88,6 +88,8 @@
 
 StretchEffectBehavior Properties::stretchEffectBehavior = StretchEffectBehavior::ShaderHWUI;
 
+DrawingEnabled Properties::drawingEnabled = DrawingEnabled::NotInitialized;
+
 bool Properties::load() {
     bool prevDebugLayersUpdates = debugLayersUpdates;
     bool prevDebugOverdraw = debugOverdraw;
@@ -141,6 +143,9 @@
 
     enableWebViewOverlays = base::GetBoolProperty(PROPERTY_WEBVIEW_OVERLAYS_ENABLED, false);
 
+    // call isDrawingEnabled to force loading of the property
+    isDrawingEnabled();
+
     return (prevDebugLayersUpdates != debugLayersUpdates) || (prevDebugOverdraw != debugOverdraw);
 }
 
@@ -210,5 +215,19 @@
     sRenderPipelineType = type;
 }
 
+void Properties::setDrawingEnabled(bool newDrawingEnabled) {
+    drawingEnabled = newDrawingEnabled ? DrawingEnabled::On : DrawingEnabled::Off;
+    enableRTAnimations = newDrawingEnabled;
+}
+
+bool Properties::isDrawingEnabled() {
+    if (drawingEnabled == DrawingEnabled::NotInitialized) {
+        bool drawingEnabledProp = base::GetBoolProperty(PROPERTY_DRAWING_ENABLED, true);
+        drawingEnabled = drawingEnabledProp ? DrawingEnabled::On : DrawingEnabled::Off;
+        enableRTAnimations = drawingEnabledProp;
+    }
+    return drawingEnabled == DrawingEnabled::On;
+}
+
 }  // namespace uirenderer
 }  // namespace android
diff --git a/libs/hwui/Properties.h b/libs/hwui/Properties.h
index 7df6e2c..7f9782b 100644
--- a/libs/hwui/Properties.h
+++ b/libs/hwui/Properties.h
@@ -187,6 +187,12 @@
  */
 #define PROPERTY_WEBVIEW_OVERLAYS_ENABLED "debug.hwui.webview_overlays_enabled"
 
+/**
+ * Property for globally GL drawing state. Can be overridden per process with
+ * setDrawingEnabled.
+ */
+#define PROPERTY_DRAWING_ENABLED "debug.hwui.drawing_enabled"
+
 ///////////////////////////////////////////////////////////////////////////////
 // Misc
 ///////////////////////////////////////////////////////////////////////////////
@@ -208,6 +214,8 @@
     UniformScale  // Uniform scale stretch everywhere
 };
 
+enum class DrawingEnabled { NotInitialized, On, Off };
+
 /**
  * Renderthread-only singleton which manages several static rendering properties. Most of these
  * are driven by system properties which are queried once at initialization, and again if init()
@@ -301,6 +309,11 @@
         stretchEffectBehavior = behavior;
     }
 
+    // Represents if drawing is enabled. Should only be Off in headless testing environments
+    static DrawingEnabled drawingEnabled;
+    static bool isDrawingEnabled();
+    static void setDrawingEnabled(bool enable);
+
 private:
     static StretchEffectBehavior stretchEffectBehavior;
     static ProfileType sProfileType;
diff --git a/libs/hwui/jni/android_graphics_HardwareRenderer.cpp b/libs/hwui/jni/android_graphics_HardwareRenderer.cpp
index 54367b8..9e56584 100644
--- a/libs/hwui/jni/android_graphics_HardwareRenderer.cpp
+++ b/libs/hwui/jni/android_graphics_HardwareRenderer.cpp
@@ -817,6 +817,14 @@
     DeviceInfo::setPresentationDeadlineNanos(presentationDeadlineNanos);
 }
 
+static void android_view_ThreadedRenderer_setDrawingEnabled(JNIEnv*, jclass, jboolean enabled) {
+    Properties::setDrawingEnabled(enabled);
+}
+
+static jboolean android_view_ThreadedRenderer_isDrawingEnabled(JNIEnv*, jclass) {
+    return Properties::isDrawingEnabled();
+}
+
 // ----------------------------------------------------------------------------
 // HardwareRendererObserver
 // ----------------------------------------------------------------------------
@@ -953,6 +961,9 @@
         {"preload", "()V", (void*)android_view_ThreadedRenderer_preload},
         {"isWebViewOverlaysEnabled", "()Z",
          (void*)android_view_ThreadedRenderer_isWebViewOverlaysEnabled},
+        {"nSetDrawingEnabled", "(Z)V", (void*)android_view_ThreadedRenderer_setDrawingEnabled},
+        {"nIsDrawingEnabled", "()Z", (void*)android_view_ThreadedRenderer_isDrawingEnabled},
+
 };
 
 static JavaVM* mJvm = nullptr;
diff --git a/libs/hwui/renderthread/CanvasContext.cpp b/libs/hwui/renderthread/CanvasContext.cpp
index 2f3a509..bb0b135 100644
--- a/libs/hwui/renderthread/CanvasContext.cpp
+++ b/libs/hwui/renderthread/CanvasContext.cpp
@@ -256,7 +256,7 @@
 }
 
 void CanvasContext::allocateBuffers() {
-    if (mNativeSurface) {
+    if (mNativeSurface && Properties::isDrawingEnabled()) {
         ANativeWindow_tryAllocateBuffers(mNativeSurface->getNativeWindow());
     }
 }
@@ -480,7 +480,8 @@
     SkRect dirty;
     mDamageAccumulator.finish(&dirty);
 
-    if (dirty.isEmpty() && Properties::skipEmptyFrames && !surfaceRequiresRedraw()) {
+    if (!Properties::isDrawingEnabled() ||
+        (dirty.isEmpty() && Properties::skipEmptyFrames && !surfaceRequiresRedraw())) {
         mCurrentFrameInfo->addFlag(FrameInfoFlags::SkippedFrame);
         if (auto grContext = getGrContext()) {
             // Submit to ensure that any texture uploads complete and Skia can
diff --git a/libs/hwui/renderthread/CanvasContext.h b/libs/hwui/renderthread/CanvasContext.h
index 6dbfcc3..2fed468 100644
--- a/libs/hwui/renderthread/CanvasContext.h
+++ b/libs/hwui/renderthread/CanvasContext.h
@@ -90,9 +90,17 @@
      *         and false otherwise (e.g. cache limits have been exceeded).
      */
     bool pinImages(std::vector<SkImage*>& mutableImages) {
+        if (!Properties::isDrawingEnabled()) {
+            return true;
+        }
         return mRenderPipeline->pinImages(mutableImages);
     }
-    bool pinImages(LsaVector<sk_sp<Bitmap>>& images) { return mRenderPipeline->pinImages(images); }
+    bool pinImages(LsaVector<sk_sp<Bitmap>>& images) {
+        if (!Properties::isDrawingEnabled()) {
+            return true;
+        }
+        return mRenderPipeline->pinImages(images);
+    }
 
     /**
      * Unpin any image that had be previously pinned to the GPU cache
diff --git a/media/java/android/media/AudioManager.java b/media/java/android/media/AudioManager.java
index ed8cdb9..cf7039b 100644
--- a/media/java/android/media/AudioManager.java
+++ b/media/java/android/media/AudioManager.java
@@ -3255,6 +3255,54 @@
     }
 
     /**
+     * @hide
+     */
+    @SystemApi(client = SystemApi.Client.MODULE_LIBRARIES)
+    @RequiresPermission(android.Manifest.permission.BLUETOOTH_STACK)
+    public void setHfpEnabled(boolean enable) {
+        AudioSystem.setParameters("hfp_enable=" + enable);
+    }
+
+    /**
+     * @hide
+     */
+    @SystemApi(client = SystemApi.Client.MODULE_LIBRARIES)
+    @RequiresPermission(android.Manifest.permission.BLUETOOTH_STACK)
+    public void setHfpVolume(int volume) {
+        AudioSystem.setParameters("hfp_volume=" + volume);
+    }
+
+    /**
+     * @hide
+     */
+    @SystemApi(client = SystemApi.Client.MODULE_LIBRARIES)
+    @RequiresPermission(android.Manifest.permission.BLUETOOTH_STACK)
+    public void setHfpSamplingRate(int rate) {
+        AudioSystem.setParameters("hfp_set_sampling_rate=" + rate);
+    }
+
+    /**
+     * @hide
+     */
+    @SystemApi(client = SystemApi.Client.MODULE_LIBRARIES)
+    @RequiresPermission(android.Manifest.permission.BLUETOOTH_STACK)
+    public void setBluetoothHeadsetProperties(@NonNull String name, boolean hasNrecEnabled,
+            boolean hasWbsEnabled) {
+        AudioSystem.setParameters("bt_headset_name=" + name
+                + ";bt_headset_nrec=" + (hasNrecEnabled ? "on" : "off")
+                + ";bt_wbs=" + (hasWbsEnabled ? "on" : "off"));
+    }
+
+    /**
+     * @hide
+     */
+    @SystemApi(client = SystemApi.Client.MODULE_LIBRARIES)
+    @RequiresPermission(android.Manifest.permission.BLUETOOTH_STACK)
+    public void setA2dpSuspended(boolean enable) {
+        AudioSystem.setParameters("A2dpSuspended=" + enable);
+    }
+
+    /**
      * Gets a variable number of parameter values from audio hardware.
      *
      * @param keys list of parameters
diff --git a/media/java/android/media/PlayerBase.java b/media/java/android/media/PlayerBase.java
index 86ed50b..72ee00f 100644
--- a/media/java/android/media/PlayerBase.java
+++ b/media/java/android/media/PlayerBase.java
@@ -102,6 +102,13 @@
         mState = AudioPlaybackConfiguration.PLAYER_STATE_IDLE;
     };
 
+    /** @hide */
+    public int getPlayerIId() {
+        synchronized (mLock) {
+            return mPlayerIId;
+        }
+    }
+
     /**
      * Call from derived class when instantiation / initialization is successful
      */
diff --git a/media/jni/android_media_MediaPlayer.cpp b/media/jni/android_media_MediaPlayer.cpp
index 2636ab2..8dcdc98 100644
--- a/media/jni/android_media_MediaPlayer.cpp
+++ b/media/jni/android_media_MediaPlayer.cpp
@@ -953,7 +953,7 @@
     Parcel* parcel = parcelForJavaObject(env, jAttributionSource);
     android::content::AttributionSourceState attributionSource;
     attributionSource.readFromParcel(parcel);
-    sp<MediaPlayer> mp = new MediaPlayer(attributionSource);
+    sp<MediaPlayer> mp = sp<MediaPlayer>::make(attributionSource);
     if (mp == NULL) {
         jniThrowException(env, "java/lang/RuntimeException", "Out of memory");
         return;
diff --git a/packages/CompanionDeviceManager/src/com/android/companiondevicemanager/CompanionDeviceActivity.java b/packages/CompanionDeviceManager/src/com/android/companiondevicemanager/CompanionDeviceActivity.java
index c1a0a9a..b4cafd8 100644
--- a/packages/CompanionDeviceManager/src/com/android/companiondevicemanager/CompanionDeviceActivity.java
+++ b/packages/CompanionDeviceManager/src/com/android/companiondevicemanager/CompanionDeviceActivity.java
@@ -93,9 +93,9 @@
             final DeviceFilterPair selectedDevice = getService().mDevicesFound.get(0);
             setTitle(Html.fromHtml(getString(
                     R.string.confirmation_title,
-                    getCallingAppName(),
-                    profileName,
-                    selectedDevice.getDisplayName()), 0));
+                    Html.escapeHtml(getCallingAppName()),
+                    Html.escapeHtml(selectedDevice.getDisplayName())), 0));
+
             mPairButton = findViewById(R.id.button_pair);
             mPairButton.setOnClickListener(v -> onDeviceConfirmed(getService().mSelectedDevice));
             getService().mSelectedDevice = selectedDevice;
@@ -108,8 +108,8 @@
             mPairButton = findViewById(R.id.button_pair);
             mPairButton.setVisibility(View.GONE);
             setTitle(Html.fromHtml(getString(R.string.chooser_title,
-                    profileName,
-                    getCallingAppName()), 0));
+                    Html.escapeHtml(profileName),
+                    Html.escapeHtml(getCallingAppName())), 0));
             mDeviceListView = findViewById(R.id.device_list);
             mDevicesAdapter = new DevicesAdapter();
             mDeviceListView.setAdapter(mDevicesAdapter);
diff --git a/packages/SystemUI/src/com/android/systemui/media/NotificationPlayer.java b/packages/SystemUI/src/com/android/systemui/media/NotificationPlayer.java
index 89786ee..a617850 100644
--- a/packages/SystemUI/src/com/android/systemui/media/NotificationPlayer.java
+++ b/packages/SystemUI/src/com/android/systemui/media/NotificationPlayer.java
@@ -139,7 +139,7 @@
                                 + " with ducking", e);
                     }
                     player.start();
-                    if (DEBUG) { Log.d(mTag, "player.start"); }
+                    if (DEBUG) { Log.d(mTag, "player.start piid:" + player.getPlayerIId()); }
                 } catch (Exception e) {
                     if (player != null) {
                         player.release();
@@ -155,7 +155,13 @@
                     mPlayer = player;
                 }
                 if (mp != null) {
-                    if (DEBUG) { Log.d(mTag, "mPlayer.release"); }
+                    if (DEBUG) {
+                        Log.d(mTag, "mPlayer.pause+release piid:" + player.getPlayerIId());
+                    }
+                    mp.pause();
+                    try {
+                        Thread.sleep(100);
+                    } catch (InterruptedException ie) { }
                     mp.release();
                 }
                 this.notify();
@@ -244,6 +250,10 @@
                         try {
                             mp.stop();
                         } catch (Exception e) { }
+                        if (DEBUG) {
+                            Log.i(mTag, "About to release MediaPlayer piid:"
+                                    + mp.getPlayerIId() + " due to notif cancelled");
+                        }
                         mp.release();
                         synchronized(mQueueAudioFocusLock) {
                             if (mAudioManagerWithAudioFocus != null) {
@@ -284,7 +294,7 @@
     public void onCompletion(MediaPlayer mp) {
         synchronized(mQueueAudioFocusLock) {
             if (mAudioManagerWithAudioFocus != null) {
-                if (DEBUG) Log.d(mTag, "onCompletion() abandonning AudioFocus");
+                if (DEBUG) Log.d(mTag, "onCompletion() abandoning AudioFocus");
                 mAudioManagerWithAudioFocus.abandonAudioFocus(null);
                 mAudioManagerWithAudioFocus = null;
             } else {
@@ -310,6 +320,10 @@
             }
         }
         if (mp != null) {
+            if (DEBUG) {
+                Log.i("NotificationPlayer", "About to release MediaPlayer piid:"
+                        + mp.getPlayerIId() + " due to onCompletion");
+            }
             mp.release();
         }
     }
diff --git a/packages/SystemUI/src/com/android/systemui/qs/QSTileHost.java b/packages/SystemUI/src/com/android/systemui/qs/QSTileHost.java
index 541ee2c..4a75810 100644
--- a/packages/SystemUI/src/com/android/systemui/qs/QSTileHost.java
+++ b/packages/SystemUI/src/com/android/systemui/qs/QSTileHost.java
@@ -51,6 +51,7 @@
 import com.android.systemui.qs.logging.QSLogger;
 import com.android.systemui.settings.UserTracker;
 import com.android.systemui.shared.plugins.PluginManager;
+import com.android.systemui.statusbar.FeatureFlags;
 import com.android.systemui.statusbar.phone.AutoTileManager;
 import com.android.systemui.statusbar.phone.StatusBar;
 import com.android.systemui.statusbar.phone.StatusBarIconController;
@@ -95,6 +96,7 @@
     private final UiEventLogger mUiEventLogger;
     private final InstanceIdSequence mInstanceIdSequence;
     private final CustomTileStatePersister mCustomTileStatePersister;
+    private final FeatureFlags mFeatureFlags;
 
     private final List<Callback> mCallbacks = new ArrayList<>();
     private AutoTileManager mAutoTiles;
@@ -122,7 +124,8 @@
             UiEventLogger uiEventLogger,
             UserTracker userTracker,
             SecureSettings secureSettings,
-            CustomTileStatePersister customTileStatePersister
+            CustomTileStatePersister customTileStatePersister,
+            FeatureFlags featureFlags
     ) {
         mIconController = iconController;
         mContext = context;
@@ -144,6 +147,7 @@
         mUserTracker = userTracker;
         mSecureSettings = secureSettings;
         mCustomTileStatePersister = customTileStatePersister;
+        mFeatureFlags = featureFlags;
 
         mainHandler.post(() -> {
             // This is technically a hack to avoid circular dependency of
@@ -265,7 +269,7 @@
         if (newValue == null && UserManager.isDeviceInDemoMode(mContext)) {
             newValue = mContext.getResources().getString(R.string.quick_settings_tiles_retail_mode);
         }
-        final List<String> tileSpecs = loadTileSpecs(mContext, newValue);
+        final List<String> tileSpecs = loadTileSpecs(mContext, newValue, mFeatureFlags);
         int currentUser = mUserTracker.getUserId();
         if (currentUser != mCurrentUser) {
             mUserContext = mUserTracker.getUserContext();
@@ -334,7 +338,7 @@
         if (newTiles.isEmpty() && !tileSpecs.isEmpty()) {
             // If we didn't manage to create any tiles, set it to empty (default)
             Log.d(TAG, "No valid tiles on tuning changed. Setting to default.");
-            changeTiles(currentSpecs, loadTileSpecs(mContext, ""));
+            changeTiles(currentSpecs, loadTileSpecs(mContext, "", mFeatureFlags));
         } else {
             for (int i = 0; i < mCallbacks.size(); i++) {
                 mCallbacks.get(i).onTilesChanged();
@@ -389,7 +393,7 @@
 
     private void changeTileSpecs(Predicate<List<String>> changeFunction) {
         final String setting = mSecureSettings.getStringForUser(TILES_SETTING, mCurrentUser);
-        final List<String> tileSpecs = loadTileSpecs(mContext, setting);
+        final List<String> tileSpecs = loadTileSpecs(mContext, setting, mFeatureFlags);
         if (changeFunction.test(tileSpecs)) {
             saveTilesToSettings(tileSpecs);
         }
@@ -478,7 +482,8 @@
         throw new RuntimeException("Default factory didn't create view for " + tile.getTileSpec());
     }
 
-    protected static List<String> loadTileSpecs(Context context, String tileList) {
+    protected static List<String> loadTileSpecs(
+            Context context, String tileList, FeatureFlags featureFlags) {
         final Resources res = context.getResources();
 
         if (TextUtils.isEmpty(tileList)) {
@@ -511,6 +516,21 @@
                 }
             }
         }
+        if (featureFlags.isProviderModelSettingEnabled()) {
+            if (!tiles.contains("internet")) {
+                if (tiles.contains("wifi")) {
+                    // Replace the WiFi with Internet, and remove the Cell
+                    tiles.set(tiles.indexOf("wifi"), "internet");
+                    tiles.remove("cell");
+                } else if (tiles.contains("cell")) {
+                    // Replace the Cell with Internet
+                    tiles.set(tiles.indexOf("cell"), "internet");
+                }
+            } else {
+                tiles.remove("wifi");
+                tiles.remove("cell");
+            }
+        }
         return tiles;
     }
 
diff --git a/packages/SystemUI/src/com/android/systemui/qs/customize/TileQueryHelper.java b/packages/SystemUI/src/com/android/systemui/qs/customize/TileQueryHelper.java
index 3c2f35b..f2832b3 100644
--- a/packages/SystemUI/src/com/android/systemui/qs/customize/TileQueryHelper.java
+++ b/packages/SystemUI/src/com/android/systemui/qs/customize/TileQueryHelper.java
@@ -41,6 +41,7 @@
 import com.android.systemui.qs.external.CustomTile;
 import com.android.systemui.qs.tileimpl.QSTileImpl.DrawableIcon;
 import com.android.systemui.settings.UserTracker;
+import com.android.systemui.statusbar.FeatureFlags;
 import com.android.systemui.util.leak.GarbageMonitor;
 
 import java.util.ArrayList;
@@ -62,6 +63,7 @@
     private final Executor mBgExecutor;
     private final Context mContext;
     private final UserTracker mUserTracker;
+    private final FeatureFlags mFeatureFlags;
     private TileStateListener mListener;
 
     private boolean mFinished;
@@ -71,12 +73,14 @@
             Context context,
             UserTracker userTracker,
             @Main Executor mainExecutor,
-            @Background Executor bgExecutor
+            @Background Executor bgExecutor,
+            FeatureFlags featureFlags
     ) {
         mContext = context;
         mMainExecutor = mainExecutor;
         mBgExecutor = bgExecutor;
         mUserTracker = userTracker;
+        mFeatureFlags = featureFlags;
     }
 
     public void setListener(TileStateListener listener) {
@@ -117,6 +121,10 @@
         }
 
         final ArrayList<QSTile> tilesToAdd = new ArrayList<>();
+        if (mFeatureFlags.isProviderModelSettingEnabled()) {
+            possibleTiles.remove("cell");
+            possibleTiles.remove("wifi");
+        }
 
         for (String spec : possibleTiles) {
             // Only add current and stock tiles that can be created from QSFactoryImpl.
diff --git a/packages/SystemUI/src/com/android/systemui/statusbar/notification/row/FooterView.java b/packages/SystemUI/src/com/android/systemui/statusbar/notification/row/FooterView.java
index 86c90c7..9eb95c4 100644
--- a/packages/SystemUI/src/com/android/systemui/statusbar/notification/row/FooterView.java
+++ b/packages/SystemUI/src/com/android/systemui/statusbar/notification/row/FooterView.java
@@ -16,7 +16,6 @@
 
 package com.android.systemui.statusbar.notification.row;
 
-import android.annotation.ColorInt;
 import android.content.Context;
 import android.content.res.Configuration;
 import android.content.res.Resources;
@@ -28,15 +27,12 @@
 import com.android.systemui.statusbar.notification.stack.ViewState;
 
 public class FooterView extends StackScrollerDecorView {
-    private final int mClearAllTopPadding;
     private FooterViewButton mDismissButton;
     private FooterViewButton mManageButton;
     private boolean mShowHistory;
 
     public FooterView(Context context, AttributeSet attrs) {
         super(context, attrs);
-        mClearAllTopPadding = context.getResources().getDimensionPixelSize(
-                R.dimen.clear_all_padding_top);
     }
 
     @Override
@@ -55,11 +51,6 @@
         mManageButton = findViewById(R.id.manage_text);
     }
 
-    public void setTextColor(@ColorInt int color) {
-        mManageButton.setTextColor(color);
-        mDismissButton.setTextColor(color);
-    }
-
     public void setManageButtonClickListener(OnClickListener listener) {
         mManageButton.setOnClickListener(listener);
     }
@@ -95,21 +86,25 @@
     @Override
     protected void onConfigurationChanged(Configuration newConfig) {
         super.onConfigurationChanged(newConfig);
-        int textColor = getResources().getColor(R.color.notif_pill_text);
-        Resources.Theme theme = getContext().getTheme();
-        mDismissButton.setBackground(
-                getResources().getDrawable(R.drawable.notif_footer_btn_background, theme));
-        mDismissButton.setTextColor(textColor);
-        mManageButton.setBackground(
-                getResources().getDrawable(R.drawable.notif_footer_btn_background, theme));
-        mManageButton = findViewById(R.id.manage_text);
+        updateColors();
         mDismissButton.setText(R.string.clear_all_notifications_text);
-        mManageButton.setTextColor(textColor);
         mDismissButton.setContentDescription(
                 mContext.getString(R.string.accessibility_clear_all));
         showHistory(mShowHistory);
     }
 
+    /**
+     * Update the text and background colors for the current color palette and night mode setting.
+     */
+    public void updateColors() {
+        Resources.Theme theme = mContext.getTheme();
+        int textColor = getResources().getColor(R.color.notif_pill_text, theme);
+        mDismissButton.setBackground(theme.getDrawable(R.drawable.notif_footer_btn_background));
+        mDismissButton.setTextColor(textColor);
+        mManageButton.setBackground(theme.getDrawable(R.drawable.notif_footer_btn_background));
+        mManageButton.setTextColor(textColor);
+    }
+
     @Override
     public ExpandableViewState createExpandableViewState() {
         return new FooterViewState();
diff --git a/packages/SystemUI/src/com/android/systemui/statusbar/notification/stack/NotificationStackScrollLayout.java b/packages/SystemUI/src/com/android/systemui/statusbar/notification/stack/NotificationStackScrollLayout.java
index 289c32f..0660daa 100644
--- a/packages/SystemUI/src/com/android/systemui/statusbar/notification/stack/NotificationStackScrollLayout.java
+++ b/packages/SystemUI/src/com/android/systemui/statusbar/notification/stack/NotificationStackScrollLayout.java
@@ -4231,7 +4231,7 @@
         final @ColorInt int textColor =
                 Utils.getColorAttrDefaultColor(mContext, android.R.attr.textColorPrimary);
         mSectionsManager.setHeaderForegroundColor(textColor);
-        mFooterView.setTextColor(textColor);
+        mFooterView.updateColors();
         mEmptyShadeView.setTextColor(textColor);
     }
 
diff --git a/packages/SystemUI/tests/src/com/android/systemui/qs/QSFragmentTest.java b/packages/SystemUI/tests/src/com/android/systemui/qs/QSFragmentTest.java
index 3ee3e55..7f89b26 100644
--- a/packages/SystemUI/tests/src/com/android/systemui/qs/QSFragmentTest.java
+++ b/packages/SystemUI/tests/src/com/android/systemui/qs/QSFragmentTest.java
@@ -139,7 +139,7 @@
                 () -> mock(AutoTileManager.class), mock(DumpManager.class),
                 mock(BroadcastDispatcher.class), Optional.of(mock(StatusBar.class)),
                 mock(QSLogger.class), mock(UiEventLogger.class), mock(UserTracker.class),
-                mock(SecureSettings.class), mock(CustomTileStatePersister.class));
+                mock(SecureSettings.class), mock(CustomTileStatePersister.class), mFeatureFlags);
         qs.setHost(host);
 
         qs.setListening(true);
diff --git a/packages/SystemUI/tests/src/com/android/systemui/qs/QSTileHostTest.java b/packages/SystemUI/tests/src/com/android/systemui/qs/QSTileHostTest.java
index 9e97f80..4cbad5f 100644
--- a/packages/SystemUI/tests/src/com/android/systemui/qs/QSTileHostTest.java
+++ b/packages/SystemUI/tests/src/com/android/systemui/qs/QSTileHostTest.java
@@ -63,6 +63,7 @@
 import com.android.systemui.qs.tileimpl.QSTileImpl;
 import com.android.systemui.settings.UserTracker;
 import com.android.systemui.shared.plugins.PluginManager;
+import com.android.systemui.statusbar.FeatureFlags;
 import com.android.systemui.statusbar.phone.AutoTileManager;
 import com.android.systemui.statusbar.phone.StatusBar;
 import com.android.systemui.statusbar.phone.StatusBarIconController;
@@ -124,6 +125,8 @@
     private SecureSettings mSecureSettings;
     @Mock
     private CustomTileStatePersister mCustomTileStatePersister;
+    @Mock
+    private FeatureFlags mFeatureFlags;
 
     private Handler mHandler;
     private TestableLooper mLooper;
@@ -137,9 +140,9 @@
         mQSTileHost = new TestQSTileHost(mContext, mIconController, mDefaultFactory, mHandler,
                 mLooper.getLooper(), mPluginManager, mTunerService, mAutoTiles, mDumpManager,
                 mBroadcastDispatcher, mStatusBar, mQSLogger, mUiEventLogger, mUserTracker,
-                mSecureSettings, mCustomTileStatePersister);
+                mSecureSettings, mCustomTileStatePersister, mFeatureFlags);
         setUpTileFactory();
-
+        when(mFeatureFlags.isProviderModelSettingEnabled()).thenReturn(false);
         when(mSecureSettings.getStringForUser(eq(QSTileHost.TILES_SETTING), anyInt()))
                 .thenReturn("");
     }
@@ -169,13 +172,13 @@
 
     @Test
     public void testLoadTileSpecs_emptySetting() {
-        List<String> tiles = QSTileHost.loadTileSpecs(mContext, "");
+        List<String> tiles = QSTileHost.loadTileSpecs(mContext, "", mFeatureFlags);
         assertFalse(tiles.isEmpty());
     }
 
     @Test
     public void testLoadTileSpecs_nullSetting() {
-        List<String> tiles = QSTileHost.loadTileSpecs(mContext, null);
+        List<String> tiles = QSTileHost.loadTileSpecs(mContext, null, mFeatureFlags);
         assertFalse(tiles.isEmpty());
     }
 
@@ -189,6 +192,55 @@
     }
 
     @Test
+    public void testRemoveWifiAndCellularWithoutInternet() {
+        when(mFeatureFlags.isProviderModelSettingEnabled()).thenReturn(true);
+        mQSTileHost.onTuningChanged(QSTileHost.TILES_SETTING, "wifi, spec1, cell, spec2");
+
+        assertEquals("internet", mQSTileHost.mTileSpecs.get(0));
+        assertEquals("spec1", mQSTileHost.mTileSpecs.get(1));
+        assertEquals("spec2", mQSTileHost.mTileSpecs.get(2));
+    }
+
+    @Test
+    public void testRemoveWifiAndCellularWithInternet() {
+        when(mFeatureFlags.isProviderModelSettingEnabled()).thenReturn(true);
+        mQSTileHost.onTuningChanged(QSTileHost.TILES_SETTING, "wifi, spec1, cell, spec2, internet");
+
+        assertEquals("spec1", mQSTileHost.mTileSpecs.get(0));
+        assertEquals("spec2", mQSTileHost.mTileSpecs.get(1));
+        assertEquals("internet", mQSTileHost.mTileSpecs.get(2));
+    }
+
+    @Test
+    public void testRemoveWifiWithoutInternet() {
+        when(mFeatureFlags.isProviderModelSettingEnabled()).thenReturn(true);
+        mQSTileHost.onTuningChanged(QSTileHost.TILES_SETTING, "spec1, wifi, spec2");
+
+        assertEquals("spec1", mQSTileHost.mTileSpecs.get(0));
+        assertEquals("internet", mQSTileHost.mTileSpecs.get(1));
+        assertEquals("spec2", mQSTileHost.mTileSpecs.get(2));
+    }
+
+    @Test
+    public void testRemoveCellWithInternet() {
+        when(mFeatureFlags.isProviderModelSettingEnabled()).thenReturn(true);
+        mQSTileHost.onTuningChanged(QSTileHost.TILES_SETTING, "spec1, spec2, cell, internet");
+
+        assertEquals("spec1", mQSTileHost.mTileSpecs.get(0));
+        assertEquals("spec2", mQSTileHost.mTileSpecs.get(1));
+        assertEquals("internet", mQSTileHost.mTileSpecs.get(2));
+    }
+
+    @Test
+    public void testNoWifiNoCellularNoInternet() {
+        when(mFeatureFlags.isProviderModelSettingEnabled()).thenReturn(true);
+        mQSTileHost.onTuningChanged(QSTileHost.TILES_SETTING, "spec1,spec2");
+
+        assertEquals("spec1", mQSTileHost.mTileSpecs.get(0));
+        assertEquals("spec2", mQSTileHost.mTileSpecs.get(1));
+    }
+
+    @Test
     public void testSpecWithInvalidDoesNotUseDefault() {
         mContext.getOrCreateTestableResources()
                 .addOverride(R.string.quick_settings_tiles, "spec1,spec2");
@@ -321,7 +373,7 @@
 
     @Test
     public void testLoadTileSpec_repeated() {
-        List<String> specs = QSTileHost.loadTileSpecs(mContext, "spec1,spec1,spec2");
+        List<String> specs = QSTileHost.loadTileSpecs(mContext, "spec1,spec1,spec2", mFeatureFlags);
 
         assertEquals(2, specs.size());
         assertEquals("spec1", specs.get(0));
@@ -332,7 +384,7 @@
     public void testLoadTileSpec_repeatedInDefault() {
         mContext.getOrCreateTestableResources()
                 .addOverride(R.string.quick_settings_tiles_default, "spec1,spec1");
-        List<String> specs = QSTileHost.loadTileSpecs(mContext, "default");
+        List<String> specs = QSTileHost.loadTileSpecs(mContext, "default", mFeatureFlags);
 
         // Remove spurious tiles, like dbg:mem
         specs.removeIf(spec -> !"spec1".equals(spec));
@@ -343,7 +395,7 @@
     public void testLoadTileSpec_repeatedDefaultAndSetting() {
         mContext.getOrCreateTestableResources()
                 .addOverride(R.string.quick_settings_tiles_default, "spec1");
-        List<String> specs = QSTileHost.loadTileSpecs(mContext, "default,spec1");
+        List<String> specs = QSTileHost.loadTileSpecs(mContext, "default,spec1", mFeatureFlags);
 
         // Remove spurious tiles, like dbg:mem
         specs.removeIf(spec -> !"spec1".equals(spec));
@@ -371,11 +423,12 @@
                 Provider<AutoTileManager> autoTiles, DumpManager dumpManager,
                 BroadcastDispatcher broadcastDispatcher, StatusBar statusBar, QSLogger qsLogger,
                 UiEventLogger uiEventLogger, UserTracker userTracker,
-                SecureSettings secureSettings, CustomTileStatePersister customTileStatePersister) {
+                SecureSettings secureSettings, CustomTileStatePersister customTileStatePersister,
+                FeatureFlags featureFlags) {
             super(context, iconController, defaultFactory, mainHandler, bgLooper, pluginManager,
                     tunerService, autoTiles, dumpManager, broadcastDispatcher,
                     Optional.of(statusBar), qsLogger, uiEventLogger, userTracker, secureSettings,
-                    customTileStatePersister);
+                    customTileStatePersister, featureFlags);
         }
 
         @Override
diff --git a/packages/SystemUI/tests/src/com/android/systemui/qs/customize/TileQueryHelperTest.java b/packages/SystemUI/tests/src/com/android/systemui/qs/customize/TileQueryHelperTest.java
index 4efcc5c..c5b6709 100644
--- a/packages/SystemUI/tests/src/com/android/systemui/qs/customize/TileQueryHelperTest.java
+++ b/packages/SystemUI/tests/src/com/android/systemui/qs/customize/TileQueryHelperTest.java
@@ -58,6 +58,7 @@
 import com.android.systemui.plugins.qs.QSTile;
 import com.android.systemui.qs.QSTileHost;
 import com.android.systemui.settings.UserTracker;
+import com.android.systemui.statusbar.FeatureFlags;
 import com.android.systemui.util.concurrency.FakeExecutor;
 import com.android.systemui.util.time.FakeSystemClock;
 
@@ -108,6 +109,8 @@
     private PackageManager mPackageManager;
     @Mock
     private UserTracker mUserTracker;
+    @Mock
+    private FeatureFlags mFeatureFlags;
     @Captor
     private ArgumentCaptor<List<TileQueryHelper.TileInfo>> mCaptor;
 
@@ -133,12 +136,12 @@
                     }
                 }
         ).when(mQSTileHost).createTile(anyString());
-
+        when(mFeatureFlags.isProviderModelSettingEnabled()).thenReturn(false);
         FakeSystemClock clock = new FakeSystemClock();
         mMainExecutor = new FakeExecutor(clock);
         mBgExecutor = new FakeExecutor(clock);
         mTileQueryHelper = new TileQueryHelper(
-                mContext, mUserTracker, mMainExecutor, mBgExecutor);
+                mContext, mUserTracker, mMainExecutor, mBgExecutor, mFeatureFlags);
         mTileQueryHelper.setListener(mListener);
     }
 
diff --git a/packages/SystemUI/tests/src/com/android/systemui/qs/external/TileServicesTest.java b/packages/SystemUI/tests/src/com/android/systemui/qs/external/TileServicesTest.java
index 2b18404..01fa222 100644
--- a/packages/SystemUI/tests/src/com/android/systemui/qs/external/TileServicesTest.java
+++ b/packages/SystemUI/tests/src/com/android/systemui/qs/external/TileServicesTest.java
@@ -48,6 +48,7 @@
 import com.android.systemui.qs.tileimpl.QSFactoryImpl;
 import com.android.systemui.settings.UserTracker;
 import com.android.systemui.shared.plugins.PluginManager;
+import com.android.systemui.statusbar.FeatureFlags;
 import com.android.systemui.statusbar.phone.AutoTileManager;
 import com.android.systemui.statusbar.phone.StatusBar;
 import com.android.systemui.statusbar.phone.StatusBarIconController;
@@ -98,6 +99,8 @@
     private UserTracker mUserTracker;
     @Mock
     private SecureSettings  mSecureSettings;
+    @Mock
+    private FeatureFlags mFeatureFlags;
 
     @Before
     public void setUp() throws Exception {
@@ -119,7 +122,8 @@
                 mUiEventLogger,
                 mUserTracker,
                 mSecureSettings,
-                mock(CustomTileStatePersister.class));
+                mock(CustomTileStatePersister.class),
+                mFeatureFlags);
         mTileService = new TestTileServices(host, Looper.getMainLooper(), mBroadcastDispatcher,
                 mUserTracker);
     }
diff --git a/services/core/java/com/android/server/TelephonyRegistry.java b/services/core/java/com/android/server/TelephonyRegistry.java
index 43bd9e7..c742708 100644
--- a/services/core/java/com/android/server/TelephonyRegistry.java
+++ b/services/core/java/com/android/server/TelephonyRegistry.java
@@ -1164,17 +1164,6 @@
                         remove(r.binder);
                     }
                 }
-                if (events.contains(
-                        TelephonyCallback.EVENT_ALWAYS_REPORTED_SIGNAL_STRENGTH_CHANGED)) {
-                    updateReportSignalStrengthDecision(r.subId);
-                    try {
-                        if (mSignalStrength[r.phoneId] != null) {
-                            r.callback.onSignalStrengthsChanged(mSignalStrength[r.phoneId]);
-                        }
-                    } catch (RemoteException ex) {
-                        remove(r.binder);
-                    }
-                }
                 if (validateEventAndUserLocked(
                         r, TelephonyCallback.EVENT_CELL_INFO_CHANGED)) {
                     try {
@@ -1353,27 +1342,6 @@
         }
     }
 
-    private void updateReportSignalStrengthDecision(int subscriptionId) {
-        synchronized (mRecords) {
-            TelephonyManager telephonyManager = (TelephonyManager) mContext
-                    .getSystemService(Context.TELEPHONY_SERVICE);
-            for (Record r : mRecords) {
-                // If any of the system clients wants to always listen to signal strength,
-                // we need to set it on.
-                if (r.matchTelephonyCallbackEvent(
-                        TelephonyCallback.EVENT_ALWAYS_REPORTED_SIGNAL_STRENGTH_CHANGED)) {
-                    telephonyManager.createForSubscriptionId(subscriptionId)
-                            .setAlwaysReportSignalStrength(true);
-                    return;
-                }
-            }
-            // If none of the system clients wants to always listen to signal strength,
-            // we need to set it off.
-            telephonyManager.createForSubscriptionId(subscriptionId)
-                    .setAlwaysReportSignalStrength(false);
-        }
-    }
-
     private String getCallIncomingNumber(Record record, int phoneId) {
         // Only reveal the incoming number if the record has read call log permission.
         return record.canReadCallLog() ? mCallIncomingNumber[phoneId] : "";
@@ -1457,14 +1425,6 @@
                     }
 
                     mRecords.remove(i);
-
-                    // Every time a client that is registrating to always receive the signal
-                    // strength is removed from registry records, we need to check if
-                    // the signal strength decision needs to update on its slot.
-                    if (r.matchTelephonyCallbackEvent(
-                            TelephonyCallback.EVENT_ALWAYS_REPORTED_SIGNAL_STRENGTH_CHANGED)) {
-                        updateReportSignalStrengthDecision(r.subId);
-                    }
                     return;
                 }
             }
@@ -1696,10 +1656,8 @@
                         log("notifySignalStrengthForPhoneId: r=" + r + " subId=" + subId
                                 + " phoneId=" + phoneId + " ss=" + signalStrength);
                     }
-                    if ((r.matchTelephonyCallbackEvent(
+                    if (r.matchTelephonyCallbackEvent(
                             TelephonyCallback.EVENT_SIGNAL_STRENGTHS_CHANGED)
-                            || r.matchTelephonyCallbackEvent(
-                            TelephonyCallback.EVENT_ALWAYS_REPORTED_SIGNAL_STRENGTH_CHANGED))
                             && idMatch(r, subId, phoneId)) {
                         try {
                             if (DBG) {
@@ -3119,11 +3077,6 @@
                     android.Manifest.permission.READ_ACTIVE_EMERGENCY_SESSION, null);
         }
 
-        if ((events.contains(TelephonyCallback.EVENT_ALWAYS_REPORTED_SIGNAL_STRENGTH_CHANGED))) {
-            mContext.enforceCallingOrSelfPermission(
-                    android.Manifest.permission.LISTEN_ALWAYS_REPORTED_SIGNAL_STRENGTH, null);
-        }
-
         if (isPrivilegedPhoneStatePermissionRequired(events)) {
             mContext.enforceCallingOrSelfPermission(
                     android.Manifest.permission.READ_PRIVILEGED_PHONE_STATE, null);
@@ -3284,9 +3237,7 @@
             }
         }
 
-        if (events.contains(TelephonyCallback.EVENT_SIGNAL_STRENGTHS_CHANGED)
-                || events.contains(
-                TelephonyCallback.EVENT_ALWAYS_REPORTED_SIGNAL_STRENGTH_CHANGED)) {
+        if (events.contains(TelephonyCallback.EVENT_SIGNAL_STRENGTHS_CHANGED)) {
             try {
                 if (mSignalStrength[phoneId] != null) {
                     SignalStrength signalStrength = mSignalStrength[phoneId];
diff --git a/services/core/java/com/android/server/accounts/AccountManagerService.java b/services/core/java/com/android/server/accounts/AccountManagerService.java
index 731f7fe..ab2147d 100644
--- a/services/core/java/com/android/server/accounts/AccountManagerService.java
+++ b/services/core/java/com/android/server/accounts/AccountManagerService.java
@@ -1834,6 +1834,11 @@
                                 + ", skipping since the account already exists");
                         return false;
                     }
+                    if (accounts.accountsDb.findAllDeAccounts().size() > 100) {
+                        Log.w(TAG, "insertAccountIntoDatabase: " + account.toSafeString()
+                                + ", skipping since more than 50 accounts on device exist");
+                        return false;
+                    }
                     long accountId = accounts.accountsDb.insertCeAccount(account, password);
                     if (accountId < 0) {
                         Log.w(TAG, "insertAccountIntoDatabase: " + account.toSafeString()
diff --git a/services/core/java/com/android/server/inputmethod/InputMethodManagerService.java b/services/core/java/com/android/server/inputmethod/InputMethodManagerService.java
index dc95533..3e52f5e 100644
--- a/services/core/java/com/android/server/inputmethod/InputMethodManagerService.java
+++ b/services/core/java/com/android/server/inputmethod/InputMethodManagerService.java
@@ -2582,14 +2582,12 @@
         }
 
         if (mCurToken != null) {
-            try {
-                if (DEBUG) {
-                    Slog.v(TAG, "Removing window token: " + mCurToken + " for display: "
-                            + mCurTokenDisplayId);
-                }
-                mIWindowManager.removeWindowToken(mCurToken, mCurTokenDisplayId);
-            } catch (RemoteException e) {
+            if (DEBUG) {
+                Slog.v(TAG, "Removing window token: " + mCurToken + " for display: "
+                        + mCurTokenDisplayId);
             }
+            mWindowManagerInternal.removeWindowToken(mCurToken, false /* removeWindows */,
+                    false /* animateExit */, mCurTokenDisplayId);
             // Set IME window status as invisible when unbind current method.
             mImeWindowVis = 0;
             mBackDisposition = InputMethodService.BACK_DISPOSITION_DEFAULT;
diff --git a/services/core/java/com/android/server/pm/DefaultCrossProfileIntentFiltersUtils.java b/services/core/java/com/android/server/pm/DefaultCrossProfileIntentFiltersUtils.java
index 3019439..5643873 100644
--- a/services/core/java/com/android/server/pm/DefaultCrossProfileIntentFiltersUtils.java
+++ b/services/core/java/com/android/server/pm/DefaultCrossProfileIntentFiltersUtils.java
@@ -215,7 +215,7 @@
     private static final DefaultCrossProfileIntentFilter RECOGNIZE_SPEECH =
             new DefaultCrossProfileIntentFilter.Builder(
                     DefaultCrossProfileIntentFilter.Direction.TO_PARENT,
-                    /* flags= */0,
+                    /* flags= */ ONLY_IF_NO_MATCH_FOUND,
                     /* letsPersonalDataIntoProfile= */ false)
                     .addAction(ACTION_RECOGNIZE_SPEECH)
                     .addCategory(Intent.CATEGORY_DEFAULT)
diff --git a/services/core/java/com/android/server/pm/permission/OWNERS b/services/core/java/com/android/server/pm/permission/OWNERS
index 8c1a90c..fc0ee23 100644
--- a/services/core/java/com/android/server/pm/permission/OWNERS
+++ b/services/core/java/com/android/server/pm/permission/OWNERS
@@ -1,7 +1,3 @@
 include platform/frameworks/base:/core/java/android/permission/OWNERS
 
-per-file DefaultPermissionGrantPolicy.java = hackbod@android.com
-per-file DefaultPermissionGrantPolicy.java = jsharkey@android.com
-per-file DefaultPermissionGrantPolicy.java = toddke@google.com
-per-file DefaultPermissionGrantPolicy.java = yamasani@google.com
-per-file DefaultPermissionGrantPolicy.java = patb@google.com
+per-file DefaultPermissionGrantPolicy.java = file:platform/frameworks/base:/core/java/android/permission/DEFAULT_PERMISSION_GRANT_POLICY_OWNERS
diff --git a/services/core/java/com/android/server/pm/permission/Permission.java b/services/core/java/com/android/server/pm/permission/Permission.java
index cda4806..94e551a 100644
--- a/services/core/java/com/android/server/pm/permission/Permission.java
+++ b/services/core/java/com/android/server/pm/permission/Permission.java
@@ -480,9 +480,10 @@
             r.append("DUP:");
             r.append(permissionInfo.name);
         }
-        if (permission.isRuntime() && (ownerChanged || wasNonRuntime)) {
-            // If this is a runtime permission and the owner has changed, or this wasn't a runtime
-            // permission, then permission state should be cleaned up
+        if ((permission.isInternal() && ownerChanged)
+                || (permission.isRuntime() && (ownerChanged || wasNonRuntime))) {
+            // If this is an internal/runtime permission and the owner has changed, or this wasn't a
+            // runtime permission, then permission state should be cleaned up.
             permission.mDefinitionChanged = true;
         }
         if (PackageManagerService.DEBUG_PACKAGE_SCANNING && r != null) {
diff --git a/services/core/java/com/android/server/pm/permission/PermissionManagerService.java b/services/core/java/com/android/server/pm/permission/PermissionManagerService.java
index 1133faa..7b12709 100644
--- a/services/core/java/com/android/server/pm/permission/PermissionManagerService.java
+++ b/services/core/java/com/android/server/pm/permission/PermissionManagerService.java
@@ -1643,7 +1643,8 @@
             isRolePermission = permission.isRole();
         }
         final boolean mayRevokeRolePermission = isRolePermission
-                && mayManageRolePermission(callingUid);
+                // Allow ourselves to revoke role permissions due to definition changes.
+                && (callingUid == Process.myUid() || mayManageRolePermission(callingUid));
 
         final boolean isRuntimePermission;
         synchronized (mLock) {
@@ -2321,11 +2322,13 @@
 
         for (int permNum = 0; permNum < numPermissions; permNum++) {
             final String permName = permissionsToRevoke.get(permNum);
+            final boolean isInternalPermission;
             synchronized (mLock) {
                 final Permission bp = mRegistry.getPermission(permName);
-                if (bp == null || !bp.isRuntime()) {
+                if (bp == null || !(bp.isInternal() || bp.isRuntime())) {
                     continue;
                 }
+                isInternalPermission = bp.isInternal();
             }
             mPackageManagerInt.forEachPackage(pkg -> {
                 final String packageName = pkg.getPackageName();
@@ -2345,12 +2348,18 @@
                     if (permissionState == PackageManager.PERMISSION_GRANTED
                             && (flags & flagMask) == 0) {
                         final int uid = UserHandle.getUid(userId, appId);
-                        EventLog.writeEvent(0x534e4554, "154505240", uid,
-                                "Revoking permission " + permName + " from package "
-                                        + packageName + " due to definition change");
-                        EventLog.writeEvent(0x534e4554, "168319670", uid,
-                                "Revoking permission " + permName + " from package "
-                                        + packageName + " due to definition change");
+                        if (isInternalPermission) {
+                            EventLog.writeEvent(0x534e4554, "195338390", uid,
+                                    "Revoking permission " + permName + " from package "
+                                            + packageName + " due to definition change");
+                        } else {
+                            EventLog.writeEvent(0x534e4554, "154505240", uid,
+                                    "Revoking permission " + permName + " from package "
+                                            + packageName + " due to definition change");
+                            EventLog.writeEvent(0x534e4554, "168319670", uid,
+                                    "Revoking permission " + permName + " from package "
+                                            + packageName + " due to definition change");
+                        }
                         Slog.e(TAG, "Revoking permission " + permName + " from package "
                                 + packageName + " due to definition change");
                         try {
diff --git a/services/core/java/com/android/server/tv/TvInputManagerService.java b/services/core/java/com/android/server/tv/TvInputManagerService.java
index 36a854e..2894708 100755
--- a/services/core/java/com/android/server/tv/TvInputManagerService.java
+++ b/services/core/java/com/android/server/tv/TvInputManagerService.java
@@ -2304,10 +2304,9 @@
         public void requestChannelBrowsable(Uri channelUri, int userId)
                 throws RemoteException {
             final String callingPackageName = getCallingPackageName();
+            final int resolvedUserId = resolveCallingUserId(Binder.getCallingPid(),
+                    Binder.getCallingUid(), userId, "requestChannelBrowsable");
             final long identity = Binder.clearCallingIdentity();
-            final int callingUid = Binder.getCallingUid();
-            final int resolvedUserId = resolveCallingUserId(Binder.getCallingPid(), callingUid,
-                userId, "requestChannelBrowsable");
             try {
                 Intent intent = new Intent(TvContract.ACTION_CHANNEL_BROWSABLE_REQUESTED);
                 List<ResolveInfo> list = getContext().getPackageManager()
diff --git a/services/core/java/com/android/server/wm/ActivityRecord.java b/services/core/java/com/android/server/wm/ActivityRecord.java
index bbea094..26c04f9 100644
--- a/services/core/java/com/android/server/wm/ActivityRecord.java
+++ b/services/core/java/com/android/server/wm/ActivityRecord.java
@@ -656,6 +656,12 @@
     boolean mLastImeShown;
 
     /**
+     * When set to true, the IME insets will be frozen until the next app becomes IME input target.
+     * @see InsetsPolicy#adjustVisibilityForIme
+     */
+    boolean mImeInsetsFrozenUntilStartInput;
+
+    /**
      * A flag to determine if this AR is in the process of closing or entering PIP. This is needed
      * to help AR know that the app is in the process of closing but hasn't yet started closing on
      * the WM side.
@@ -1357,6 +1363,7 @@
         }
         if (newTask != null && isState(RESUMED)) {
             newTask.setResumedActivity(this, "onParentChanged");
+            mImeInsetsFrozenUntilStartInput = false;
         }
 
         if (rootTask != null && rootTask.topRunningActivity() == this) {
@@ -4767,6 +4774,7 @@
                     && imeInputTarget.getWindow().mActivityRecord == this
                     && mDisplayContent.mInputMethodWindow != null
                     && mDisplayContent.mInputMethodWindow.isVisible();
+            mImeInsetsFrozenUntilStartInput = true;
         }
 
         final DisplayContent displayContent = getDisplayContent();
@@ -5885,6 +5893,14 @@
             // closing activity having to wait until idle timeout to be stopped or destroyed if the
             // next activity won't report idle (e.g. repeated view animation).
             mTaskSupervisor.scheduleProcessStoppingAndFinishingActivitiesIfNeeded();
+
+            // If the activity is visible, but no windows are eligible to start input, unfreeze
+            // to avoid permanently frozen IME insets.
+            if (mImeInsetsFrozenUntilStartInput && getWindow(
+                    win -> WindowManager.LayoutParams.mayUseInputMethod(win.mAttrs.flags))
+                    == null) {
+                mImeInsetsFrozenUntilStartInput = false;
+            }
         }
     }
 
@@ -7800,6 +7816,13 @@
         }
     }
 
+    @Override
+    void onResize() {
+        // Reset freezing IME insets flag when the activity resized.
+        mImeInsetsFrozenUntilStartInput = false;
+        super.onResize();
+    }
+
     /** Returns true if the configuration is compatible with this activity. */
     boolean isConfigurationCompatible(Configuration config) {
         final int orientation = getRequestedOrientation();
diff --git a/services/core/java/com/android/server/wm/DisplayContent.java b/services/core/java/com/android/server/wm/DisplayContent.java
index dbc1116..9335846 100644
--- a/services/core/java/com/android/server/wm/DisplayContent.java
+++ b/services/core/java/com/android/server/wm/DisplayContent.java
@@ -1165,10 +1165,10 @@
         }
     }
 
-    WindowToken removeWindowToken(IBinder binder) {
+    WindowToken removeWindowToken(IBinder binder, boolean animateExit) {
         final WindowToken token = mTokenMap.remove(binder);
         if (token != null && token.asActivityRecord() == null) {
-            token.setExiting();
+            token.setExiting(animateExit);
         }
         return token;
     }
@@ -1252,7 +1252,7 @@
     }
 
     void removeAppToken(IBinder binder) {
-        final WindowToken token = removeWindowToken(binder);
+        final WindowToken token = removeWindowToken(binder, true /* animateExit */);
         if (token == null) {
             Slog.w(TAG_WM, "removeAppToken: Attempted to remove non-existing token: " + binder);
             return;
@@ -3971,6 +3971,9 @@
     void updateImeInputAndControlTarget(WindowState target) {
         if (mImeInputTarget != target) {
             ProtoLog.i(WM_DEBUG_IME, "setInputMethodInputTarget %s", target);
+            if (target != null && target.mActivityRecord != null) {
+                target.mActivityRecord.mImeInsetsFrozenUntilStartInput = false;
+            }
             setImeInputTarget(target);
             updateImeControlTarget();
         }
diff --git a/services/core/java/com/android/server/wm/InsetsPolicy.java b/services/core/java/com/android/server/wm/InsetsPolicy.java
index f2f1926..a8e1c1c 100644
--- a/services/core/java/com/android/server/wm/InsetsPolicy.java
+++ b/services/core/java/com/android/server/wm/InsetsPolicy.java
@@ -211,7 +211,7 @@
     InsetsState getInsetsForWindow(WindowState target) {
         final InsetsState originalState = mStateController.getInsetsForWindow(target);
         final InsetsState state = adjustVisibilityForTransientTypes(originalState);
-        return target.mIsImWindow ? adjustVisibilityForIme(state, state == originalState) : state;
+        return adjustVisibilityForIme(target, state, state == originalState);
     }
 
     /**
@@ -241,16 +241,37 @@
         return state;
     }
 
-    // Navigation bar insets is always visible to IME.
-    private static InsetsState adjustVisibilityForIme(InsetsState originalState,
+    private InsetsState adjustVisibilityForIme(WindowState w, InsetsState originalState,
             boolean copyState) {
-        final InsetsSource originalNavSource = originalState.peekSource(ITYPE_NAVIGATION_BAR);
-        if (originalNavSource != null && !originalNavSource.isVisible()) {
-            final InsetsState state = copyState ? new InsetsState(originalState) : originalState;
-            final InsetsSource navSource = new InsetsSource(originalNavSource);
-            navSource.setVisible(true);
-            state.addSource(navSource);
-            return state;
+        if (w.mIsImWindow) {
+            // Navigation bar insets is always visible to IME.
+            final InsetsSource originalNavSource = originalState.peekSource(ITYPE_NAVIGATION_BAR);
+            if (originalNavSource != null && !originalNavSource.isVisible()) {
+                final InsetsState state = copyState ? new InsetsState(originalState)
+                        : originalState;
+                final InsetsSource navSource = new InsetsSource(originalNavSource);
+                navSource.setVisible(true);
+                state.addSource(navSource);
+                return state;
+            }
+        } else if (w.mActivityRecord != null && w.mActivityRecord.mImeInsetsFrozenUntilStartInput) {
+            // During switching tasks with gestural navigation, if the IME is attached to
+            // one app window on that time, even the next app window is behind the IME window,
+            // conceptually the window should not receive the IME insets if the next window is
+            // not eligible IME requester and ready to show IME on top of it.
+            final boolean shouldImeAttachedToApp = mDisplayContent.shouldImeAttachedToApp();
+            final InsetsSource originalImeSource = originalState.peekSource(ITYPE_IME);
+
+            if (shouldImeAttachedToApp && originalImeSource != null) {
+                final boolean imeVisibility =
+                        w.mActivityRecord.mLastImeShown || w.getRequestedVisibility(ITYPE_IME);
+                final InsetsState state = copyState ? new InsetsState(originalState)
+                        : originalState;
+                final InsetsSource imeSource = new InsetsSource(originalImeSource);
+                imeSource.setVisible(imeVisibility);
+                state.addSource(imeSource);
+                return state;
+            }
         }
         return originalState;
     }
diff --git a/services/core/java/com/android/server/wm/TaskSnapshotController.java b/services/core/java/com/android/server/wm/TaskSnapshotController.java
index e743710..a518222 100644
--- a/services/core/java/com/android/server/wm/TaskSnapshotController.java
+++ b/services/core/java/com/android/server/wm/TaskSnapshotController.java
@@ -118,6 +118,11 @@
      */
     private final boolean mIsRunningOnWear;
 
+    /**
+     * Flag indicating if device configuration has disabled app snapshots.
+     */
+    private final boolean mConfigDisableTaskSnapshots;
+
     TaskSnapshotController(WindowManagerService service) {
         mService = service;
         mPersister = new TaskSnapshotPersister(mService, Environment::getDataSystemCeDirectory);
@@ -131,6 +136,8 @@
             PackageManager.FEATURE_WATCH);
         mHighResTaskSnapshotScale = mService.mContext.getResources().getFloat(
                 com.android.internal.R.dimen.config_highResTaskSnapshotScale);
+        mConfigDisableTaskSnapshots = mService.mContext.getResources().getBoolean(
+                            com.android.internal.R.bool.config_disableTaskSnapshots);
     }
 
     void systemReady() {
@@ -488,7 +495,8 @@
     }
 
     boolean shouldDisableSnapshots() {
-        return mIsRunningOnWear || mIsRunningOnTv || mIsRunningOnIoT;
+        return mIsRunningOnWear || mIsRunningOnTv || mIsRunningOnIoT
+            || mConfigDisableTaskSnapshots;
     }
 
     /**
diff --git a/services/core/java/com/android/server/wm/WallpaperWindowToken.java b/services/core/java/com/android/server/wm/WallpaperWindowToken.java
index 194f48f..b54e8b7 100644
--- a/services/core/java/com/android/server/wm/WallpaperWindowToken.java
+++ b/services/core/java/com/android/server/wm/WallpaperWindowToken.java
@@ -66,8 +66,8 @@
     }
 
     @Override
-    void setExiting() {
-        super.setExiting();
+    void setExiting(boolean animateExit) {
+        super.setExiting(animateExit);
         mDisplayContent.mWallpaperController.removeWallpaperToken(this);
     }
 
diff --git a/services/core/java/com/android/server/wm/WindowManagerInternal.java b/services/core/java/com/android/server/wm/WindowManagerInternal.java
index 47087cf..4fac05c 100644
--- a/services/core/java/com/android/server/wm/WindowManagerInternal.java
+++ b/services/core/java/com/android/server/wm/WindowManagerInternal.java
@@ -445,8 +445,21 @@
      * @param removeWindows Whether to also remove the windows associated with the token.
      * @param displayId The display to remove the token from.
      */
+    public final void removeWindowToken(android.os.IBinder token, boolean removeWindows,
+            int displayId) {
+        removeWindowToken(token, removeWindows, true /* animateExit */, displayId);
+    }
+
+    /**
+     * Removes a window token.
+     *
+     * @param token The toke to remove.
+     * @param removeWindows Whether to also remove the windows associated with the token.
+     * @param animateExit Whether to play the windows exit animation after the token removal.
+     * @param displayId The display to remove the token from.
+     */
     public abstract void removeWindowToken(android.os.IBinder token, boolean removeWindows,
-            int displayId);
+            boolean animateExit, int displayId);
 
     /**
      * Registers a listener to be notified about app transition events.
diff --git a/services/core/java/com/android/server/wm/WindowManagerService.java b/services/core/java/com/android/server/wm/WindowManagerService.java
index 1ec9187..9caef70 100644
--- a/services/core/java/com/android/server/wm/WindowManagerService.java
+++ b/services/core/java/com/android/server/wm/WindowManagerService.java
@@ -2816,6 +2816,31 @@
 
     }
 
+    void removeWindowToken(IBinder binder, boolean removeWindows, boolean animateExit,
+            int displayId) {
+        synchronized (mGlobalLock) {
+            final DisplayContent dc = mRoot.getDisplayContent(displayId);
+
+            if (dc == null) {
+                ProtoLog.w(WM_ERROR, "removeWindowToken: Attempted to remove token: %s"
+                        + " for non-exiting displayId=%d", binder, displayId);
+                return;
+            }
+            final WindowToken token = dc.removeWindowToken(binder, animateExit);
+            if (token == null) {
+                ProtoLog.w(WM_ERROR,
+                        "removeWindowToken: Attempted to remove non-existing token: %s",
+                        binder);
+                return;
+            }
+
+            if (removeWindows) {
+                token.removeAllWindowsIfPossible();
+            }
+            dc.getInputMonitor().updateInputWindowsLw(true /* force */);
+        }
+    }
+
     @Override
     public void removeWindowToken(IBinder binder, int displayId) {
         if (!checkCallingPermission(MANAGE_APP_TOKENS, "removeWindowToken()")) {
@@ -2823,23 +2848,7 @@
         }
         final long origId = Binder.clearCallingIdentity();
         try {
-            synchronized (mGlobalLock) {
-                final DisplayContent dc = mRoot.getDisplayContent(displayId);
-
-                if (dc == null) {
-                    ProtoLog.w(WM_ERROR, "removeWindowToken: Attempted to remove token: %s"
-                            + " for non-exiting displayId=%d", binder, displayId);
-                    return;
-                }
-                final WindowToken token = dc.removeWindowToken(binder);
-                if (token == null) {
-                    ProtoLog.w(WM_ERROR,
-                            "removeWindowToken: Attempted to remove non-existing token: %s",
-                            binder);
-                    return;
-                }
-                dc.getInputMonitor().updateInputWindowsLw(true /*force*/);
-            }
+            removeWindowToken(binder, false /* removeWindows */, true /* animateExit */, displayId);
         } finally {
             Binder.restoreCallingIdentity(origId);
         }
@@ -7536,28 +7545,10 @@
         }
 
         @Override
-        public void removeWindowToken(IBinder binder, boolean removeWindows, int displayId) {
-            synchronized (mGlobalLock) {
-                if (removeWindows) {
-                    final DisplayContent dc = mRoot.getDisplayContent(displayId);
-                    if (dc == null) {
-                        ProtoLog.w(WM_ERROR, "removeWindowToken: Attempted to remove token: %s"
-                                + " for non-exiting displayId=%d", binder, displayId);
-                        return;
-                    }
-
-                    final WindowToken token = dc.removeWindowToken(binder);
-                    if (token == null) {
-                        ProtoLog.w(WM_ERROR,
-                                "removeWindowToken: Attempted to remove non-existing token: %s",
-                                binder);
-                        return;
-                    }
-
-                    token.removeAllWindowsIfPossible();
-                }
-                WindowManagerService.this.removeWindowToken(binder, displayId);
-            }
+        public void removeWindowToken(IBinder binder, boolean removeWindows, boolean animateExit,
+                int displayId) {
+            WindowManagerService.this.removeWindowToken(binder, removeWindows, animateExit,
+                    displayId);
         }
 
         @Override
diff --git a/services/core/java/com/android/server/wm/WindowState.java b/services/core/java/com/android/server/wm/WindowState.java
index c3fc995..5e042ef 100644
--- a/services/core/java/com/android/server/wm/WindowState.java
+++ b/services/core/java/com/android/server/wm/WindowState.java
@@ -2180,11 +2180,18 @@
         }
     }
 
-    boolean onSetAppExiting() {
+    boolean onSetAppExiting(boolean animateExit) {
         final DisplayContent displayContent = getDisplayContent();
         boolean changed = false;
 
-        if (isVisibleNow()) {
+        if (!animateExit) {
+            // Hide the window permanently if no window exist animation is performed, so we can
+            // avoid the window surface becoming visible again unexpectedly during the next
+            // relayout.
+            mPermanentlyHidden = true;
+            hide(false /* doAnimation */, false /* requestAnim */);
+        }
+        if (isVisibleNow() && animateExit) {
             mWinAnimator.applyAnimationLocked(TRANSIT_EXIT, false);
             if (mWmService.mAccessibilityController != null) {
                 mWmService.mAccessibilityController.onWindowTransition(this, TRANSIT_EXIT);
@@ -2197,7 +2204,7 @@
 
         for (int i = mChildren.size() - 1; i >= 0; --i) {
             final WindowState c = mChildren.get(i);
-            changed |= c.onSetAppExiting();
+            changed |= c.onSetAppExiting(animateExit);
         }
 
         return changed;
diff --git a/services/core/java/com/android/server/wm/WindowToken.java b/services/core/java/com/android/server/wm/WindowToken.java
index fbfa400..3cbc67c 100644
--- a/services/core/java/com/android/server/wm/WindowToken.java
+++ b/services/core/java/com/android/server/wm/WindowToken.java
@@ -24,6 +24,7 @@
 import static com.android.internal.protolog.ProtoLogGroup.WM_DEBUG_APP_TRANSITIONS;
 import static com.android.internal.protolog.ProtoLogGroup.WM_DEBUG_FOCUS;
 import static com.android.internal.protolog.ProtoLogGroup.WM_DEBUG_WINDOW_MOVEMENT;
+import static com.android.server.wm.SurfaceAnimator.ANIMATION_TYPE_WINDOW_ANIMATION;
 import static com.android.server.wm.WindowContainer.AnimationFlags.CHILDREN;
 import static com.android.server.wm.WindowContainer.AnimationFlags.PARENTS;
 import static com.android.server.wm.WindowContainer.AnimationFlags.TRANSITION;
@@ -232,7 +233,7 @@
         }
     }
 
-    void setExiting() {
+    void setExiting(boolean animateExit) {
         if (isEmpty()) {
             super.removeImmediately();
             return;
@@ -247,11 +248,12 @@
 
         final int count = mChildren.size();
         boolean changed = false;
-        final boolean delayed = isAnimating(TRANSITION | PARENTS | CHILDREN);
+        final boolean delayed = isAnimating(TRANSITION | PARENTS)
+                || (isAnimating(CHILDREN, ANIMATION_TYPE_WINDOW_ANIMATION) && animateExit);
 
         for (int i = 0; i < count; i++) {
             final WindowState win = mChildren.get(i);
-            changed |= win.onSetAppExiting();
+            changed |= win.onSetAppExiting(animateExit);
         }
 
         final ActivityRecord app = asActivityRecord();
@@ -353,7 +355,7 @@
     @Override
     void removeImmediately() {
         if (mDisplayContent != null) {
-            mDisplayContent.removeWindowToken(token);
+            mDisplayContent.removeWindowToken(token, true /* animateExit */);
         }
         // Needs to occur after the token is removed from the display above to avoid attempt at
         // duplicate removal of this window container from it's parent.
diff --git a/services/tests/wmtests/src/com/android/server/wm/ActivityRecordTests.java b/services/tests/wmtests/src/com/android/server/wm/ActivityRecordTests.java
index 293e862a..6f04f17 100644
--- a/services/tests/wmtests/src/com/android/server/wm/ActivityRecordTests.java
+++ b/services/tests/wmtests/src/com/android/server/wm/ActivityRecordTests.java
@@ -39,6 +39,7 @@
 import static android.view.Display.DEFAULT_DISPLAY;
 import static android.view.WindowManager.LayoutParams.FIRST_APPLICATION_WINDOW;
 import static android.view.WindowManager.LayoutParams.FIRST_SUB_WINDOW;
+import static android.view.WindowManager.LayoutParams.FLAG_ALT_FOCUSABLE_IM;
 import static android.view.WindowManager.LayoutParams.FLAG_DISMISS_KEYGUARD;
 import static android.view.WindowManager.LayoutParams.FLAG_SHOW_WHEN_LOCKED;
 import static android.view.WindowManager.LayoutParams.TYPE_APPLICATION;
@@ -2816,6 +2817,73 @@
         assertFalse(activity.mDisplayContent.mClosingApps.contains(activity));
     }
 
+    @Test
+    public void testImeInsetsFrozenFlag_resetWhenReparented() {
+        final ActivityRecord activity = createActivityWithTask();
+        final WindowState app = createWindow(null, TYPE_APPLICATION, activity, "app");
+        final WindowState imeWindow = createWindow(null, TYPE_APPLICATION, "imeWindow");
+        final Task newTask = new TaskBuilder(mSupervisor).build();
+        makeWindowVisible(app, imeWindow);
+        mDisplayContent.mInputMethodWindow = imeWindow;
+        mDisplayContent.setImeLayeringTarget(app);
+        mDisplayContent.setImeInputTarget(app);
+
+        // Simulate app is closing and expect the last IME is shown and IME insets is frozen.
+        app.mActivityRecord.commitVisibility(false, false);
+        assertTrue(app.mActivityRecord.mLastImeShown);
+        assertTrue(app.mActivityRecord.mImeInsetsFrozenUntilStartInput);
+
+        // Expect IME insets frozen state will reset when the activity is reparent to the new task.
+        activity.setState(RESUMED, "test");
+        activity.reparent(newTask, 0 /* top */, "test");
+        assertFalse(app.mActivityRecord.mImeInsetsFrozenUntilStartInput);
+    }
+
+    @UseTestDisplay(addWindows = W_INPUT_METHOD)
+    @Test
+    public void testImeInsetsFrozenFlag_resetWhenResized() {
+        final WindowState app = createWindow(null, TYPE_APPLICATION, "app");
+        makeWindowVisibleAndDrawn(app, mImeWindow);
+        mDisplayContent.setImeLayeringTarget(app);
+        mDisplayContent.setImeInputTarget(app);
+
+        // Simulate app is closing and expect the last IME is shown and IME insets is frozen.
+        app.mActivityRecord.commitVisibility(false, false);
+        assertTrue(app.mActivityRecord.mLastImeShown);
+        assertTrue(app.mActivityRecord.mImeInsetsFrozenUntilStartInput);
+
+        // Expect IME insets frozen state will reset when the activity is reparent to the new task.
+        app.mActivityRecord.onResize();
+        assertFalse(app.mActivityRecord.mImeInsetsFrozenUntilStartInput);
+    }
+
+    @UseTestDisplay(addWindows = W_INPUT_METHOD)
+    @Test
+    public void testImeInsetsFrozenFlag_resetWhenNoImeFocusableInActivity() {
+        final WindowState app = createWindow(null, TYPE_APPLICATION, "app");
+        makeWindowVisibleAndDrawn(app, mImeWindow);
+        mDisplayContent.setImeLayeringTarget(app);
+        mDisplayContent.setImeInputTarget(app);
+
+        // Simulate app is closing and expect the last IME is shown and IME insets is frozen.
+        app.mActivityRecord.commitVisibility(false, false);
+        app.mActivityRecord.onWindowsGone();
+
+        assertTrue(app.mActivityRecord.mLastImeShown);
+        assertTrue(app.mActivityRecord.mImeInsetsFrozenUntilStartInput);
+
+        // Expect IME insets frozen state will reset when the activity has no IME focusable window.
+        app.mActivityRecord.forAllWindowsUnchecked(w -> {
+            w.mAttrs.flags |= FLAG_ALT_FOCUSABLE_IM;
+            return true;
+        }, true);
+
+        app.mActivityRecord.commitVisibility(true, false);
+        app.mActivityRecord.onWindowsVisible();
+
+        assertFalse(app.mActivityRecord.mImeInsetsFrozenUntilStartInput);
+    }
+
     private void assertHasStartingWindow(ActivityRecord atoken) {
         assertNotNull(atoken.mStartingSurface);
         assertNotNull(atoken.mStartingData);
diff --git a/services/tests/wmtests/src/com/android/server/wm/SystemServicesTestRule.java b/services/tests/wmtests/src/com/android/server/wm/SystemServicesTestRule.java
index a8e1753..8e7ba4bc 100644
--- a/services/tests/wmtests/src/com/android/server/wm/SystemServicesTestRule.java
+++ b/services/tests/wmtests/src/com/android/server/wm/SystemServicesTestRule.java
@@ -258,6 +258,7 @@
         final ActivityManagerInternal amInternal = mAmService.mInternal;
         spyOn(amInternal);
         doNothing().when(amInternal).trimApplications();
+        doNothing().when(amInternal).scheduleAppGcs();
         doNothing().when(amInternal).updateCpuStats();
         doNothing().when(amInternal).updateOomAdj();
         doNothing().when(amInternal).updateBatteryStats(any(), anyInt(), anyInt(), anyBoolean());
diff --git a/services/tests/wmtests/src/com/android/server/wm/WindowStateTests.java b/services/tests/wmtests/src/com/android/server/wm/WindowStateTests.java
index 92b670e..d88ac25 100644
--- a/services/tests/wmtests/src/com/android/server/wm/WindowStateTests.java
+++ b/services/tests/wmtests/src/com/android/server/wm/WindowStateTests.java
@@ -891,6 +891,40 @@
         assertTrue(mAppWindow.getInsetsState().getSourceOrDefaultVisibility(ITYPE_NAVIGATION_BAR));
     }
 
+    @Test
+    public void testAdjustImeInsetsVisibilityWhenSwitchingApps() {
+        final WindowState app = createWindow(null, TYPE_APPLICATION, "app");
+        final WindowState app2 = createWindow(null, TYPE_APPLICATION, "app2");
+        final WindowState imeWindow = createWindow(null, TYPE_APPLICATION, "imeWindow");
+        spyOn(imeWindow);
+        doReturn(true).when(imeWindow).isVisible();
+        mDisplayContent.mInputMethodWindow = imeWindow;
+
+        final InsetsStateController controller = mDisplayContent.getInsetsStateController();
+        controller.getImeSourceProvider().setWindow(imeWindow, null, null);
+
+        // Simulate app requests IME with updating all windows Insets State when IME is above app.
+        mDisplayContent.setImeLayeringTarget(app);
+        mDisplayContent.setImeInputTarget(app);
+        assertTrue(mDisplayContent.shouldImeAttachedToApp());
+        controller.getImeSourceProvider().scheduleShowImePostLayout(app);
+        controller.getImeSourceProvider().getSource().setVisible(true);
+        controller.updateAboveInsetsState(imeWindow, false);
+
+        // Expect all app windows behind IME can receive IME insets visible.
+        assertTrue(app.getInsetsState().getSource(ITYPE_IME).isVisible());
+        assertTrue(app2.getInsetsState().getSource(ITYPE_IME).isVisible());
+
+        // Simulate app plays closing transition to app2.
+        app.mActivityRecord.commitVisibility(false, false);
+        assertTrue(app.mActivityRecord.mLastImeShown);
+        assertTrue(app.mActivityRecord.mImeInsetsFrozenUntilStartInput);
+
+        // Verify the IME insets is visible on app, but not for app2 during app task switching.
+        assertTrue(app.getInsetsState().getSource(ITYPE_IME).isVisible());
+        assertFalse(app2.getInsetsState().getSource(ITYPE_IME).isVisible());
+    }
+
     @UseTestDisplay(addWindows = { W_ACTIVITY })
     @Test
     public void testUpdateImeControlTargetWhenLeavingMultiWindow() {
diff --git a/services/tests/wmtests/src/com/android/server/wm/WindowTokenTests.java b/services/tests/wmtests/src/com/android/server/wm/WindowTokenTests.java
index d048f1842..589f913 100644
--- a/services/tests/wmtests/src/com/android/server/wm/WindowTokenTests.java
+++ b/services/tests/wmtests/src/com/android/server/wm/WindowTokenTests.java
@@ -24,6 +24,7 @@
 import static android.view.WindowManager.LayoutParams.TYPE_TOAST;
 
 import static com.android.dx.mockito.inline.extended.ExtendedMockito.spyOn;
+import static com.android.server.policy.WindowManagerPolicy.TRANSIT_EXIT;
 
 import static org.junit.Assert.assertEquals;
 import static org.junit.Assert.assertFalse;
@@ -44,6 +45,7 @@
 
 import org.junit.Test;
 import org.junit.runner.RunWith;
+import org.mockito.Mockito;
 
 import java.util.function.BiFunction;
 
@@ -126,7 +128,7 @@
         final WindowState window1 = createWindow(null, TYPE_TOAST, token, "window1");
         final WindowState window2 = createWindow(null, TYPE_TOAST, token, "window2");
 
-        mDisplayContent.removeWindowToken(token.token);
+        mDisplayContent.removeWindowToken(token.token, true /* animateExit */);
         // Verify that the token is no longer mapped on the display
         assertNull(mDisplayContent.getWindowToken(token.token));
         // Verify that the token is still attached to its parent
@@ -261,4 +263,29 @@
         assertNotNull(app.getFrozenInsetsState());
         assertNull(mDisplayContent.mInputMethodWindow.getFrozenInsetsState());
     }
+
+    @Test
+    public void testRemoveWindowToken_noAnimateExitWhenSet() {
+        final TestWindowToken token = createTestWindowToken(0, mDisplayContent);
+        final WindowState win = createWindow(null, TYPE_APPLICATION, token, "win");
+        makeWindowVisible(win);
+        assertTrue(win.isOnScreen());
+        spyOn(win);
+        spyOn(win.mWinAnimator);
+        spyOn(win.mToken);
+
+        // Invoking removeWindowToken with setting no window exit animation and not remove window
+        // immediately. verify the window will hide without applying exit animation.
+        mWm.removeWindowToken(win.mToken.token, false /* removeWindows */, false /* animateExit */,
+                mDisplayContent.mDisplayId);
+        verify(win).onSetAppExiting(Mockito.eq(false) /* animateExit */);
+        verify(win).hide(false /* doAnimation */, false /* requestAnim */);
+        assertFalse(win.isOnScreen());
+        verify(win.mWinAnimator, Mockito.never()).applyAnimationLocked(TRANSIT_EXIT, false);
+        assertTrue(win.mToken.hasChild());
+
+        // Even though the window is being removed afterwards, it won't apply exit animation.
+        win.removeIfPossible();
+        verify(win.mWinAnimator, Mockito.never()).applyAnimationLocked(TRANSIT_EXIT, false);
+    }
 }
diff --git a/telephony/java/android/telephony/SignalStrengthUpdateRequest.java b/telephony/java/android/telephony/SignalStrengthUpdateRequest.java
index 41e24dd..2ff4ac5 100644
--- a/telephony/java/android/telephony/SignalStrengthUpdateRequest.java
+++ b/telephony/java/android/telephony/SignalStrengthUpdateRequest.java
@@ -17,6 +17,8 @@
 package android.telephony;
 
 import android.annotation.NonNull;
+import android.annotation.Nullable;
+import android.annotation.RequiresPermission;
 import android.os.Binder;
 import android.os.IBinder;
 import android.os.Parcel;
@@ -66,10 +68,15 @@
     private final IBinder mLiveToken;
 
     private SignalStrengthUpdateRequest(
-            @NonNull List<SignalThresholdInfo> signalThresholdInfos,
+            @Nullable List<SignalThresholdInfo> signalThresholdInfos,
             boolean isReportingRequestedWhileIdle,
             boolean isSystemThresholdReportingRequestedWhileIdle) {
-        validate(signalThresholdInfos);
+        // System app (like Bluetooth) can specify the request to report system thresholds while
+        // device is idle (with permission protection). In this case, the request doesn't need to
+        // provide a non-empty list of SignalThresholdInfo which is only asked for public apps.
+        if (!isSystemThresholdReportingRequestedWhileIdle) {
+            validate(signalThresholdInfos);
+        }
 
         mSignalThresholdInfos = signalThresholdInfos;
         mIsReportingRequestedWhileIdle = isReportingRequestedWhileIdle;
@@ -128,13 +135,15 @@
         /**
          * Set the builder object if require reporting on the system thresholds when device is idle.
          *
-         * This can only used by the system caller.
+         * <p>This can only used by the system caller. Requires permission
+         * {@link android.Manifest.permission#LISTEN_ALWAYS_REPORTED_SIGNAL_STRENGTH}.
          *
          * @param isSystemThresholdReportingRequestedWhileIdle true if request reporting on the
          *                                                     system thresholds when device is idle
          * @return the builder to facilitate the chaining
          * @hide
          */
+        @RequiresPermission(android.Manifest.permission.LISTEN_ALWAYS_REPORTED_SIGNAL_STRENGTH)
         public @NonNull Builder setSystemThresholdReportingRequestedWhileIdle(
                 boolean isSystemThresholdReportingRequestedWhileIdle) {
             mIsSystemThresholdReportingRequestedWhileIdle =
diff --git a/telephony/java/android/telephony/TelephonyManager.java b/telephony/java/android/telephony/TelephonyManager.java
index a1bed29..122f96d 100644
--- a/telephony/java/android/telephony/TelephonyManager.java
+++ b/telephony/java/android/telephony/TelephonyManager.java
@@ -12425,26 +12425,6 @@
     }
 
     /**
-     * Enable or disable signal strength changes from radio will always be reported in any
-     * condition (e.g. screen is off). This is only allowed for System caller.
-     *
-     * @param isEnabled {@code true} for enabling; {@code false} for disabling.
-     * @hide
-     */
-    @RequiresPermission(android.Manifest.permission.MODIFY_PHONE_STATE)
-    public void setAlwaysReportSignalStrength(boolean isEnabled) {
-        try {
-            ITelephony telephony = getITelephony();
-            if (telephony != null) {
-                telephony.setAlwaysReportSignalStrength(getSubId(), isEnabled);
-            }
-        } catch (RemoteException ex) {
-            Log.e(TAG, "setAlwaysReportSignalStrength RemoteException", ex);
-            ex.rethrowAsRuntimeException();
-        }
-    }
-
-    /**
      * Get the most recently available signal strength information.
      *
      * Get the most recent SignalStrength information reported by the modem. Due
diff --git a/telephony/java/com/android/internal/telephony/ITelephony.aidl b/telephony/java/com/android/internal/telephony/ITelephony.aidl
index 63732b5..232a5d8 100644
--- a/telephony/java/com/android/internal/telephony/ITelephony.aidl
+++ b/telephony/java/com/android/internal/telephony/ITelephony.aidl
@@ -1002,11 +1002,6 @@
      boolean isManualNetworkSelectionAllowed(int subId);
 
     /**
-     * Enable or disable always reporting signal strength changes from radio.
-     */
-     void setAlwaysReportSignalStrength(int subId, boolean isEnable);
-
-    /**
      * Get P-CSCF address from PCO after data connection is established or modified.
      * @param apnType the apnType, "ims" for IMS APN, "emergency" for EMERGENCY APN
      * @param callingPackage The package making the call.