diff --git a/res/values/strings.xml b/res/values/strings.xml
index 08e6c23..c89aa17 100644
--- a/res/values/strings.xml
+++ b/res/values/strings.xml
@@ -3538,10 +3538,14 @@
     <string name="select_logd_size_title">Logger buffer sizes</string>
     <!-- UI debug setting: limit size of Android logger buffers [CHAR LIMIT=59] -->
     <string name="select_logd_size_dialog_title">Select Logger sizes per log buffer</string>
-    <!-- Setting Checkbox title whether to allow mock locations -->
-    <string name="allow_mock_location">Allow mock locations</string>
-    <!-- setting Checkbox summary whether to allow mock locations  -->
-    <string name="allow_mock_location_summary">Allow mock locations</string>
+
+    <!-- UI debug setting: select current app to mock location [CHAR LIMIT=50] -->
+    <string name="mock_location_app">Select mock location app</string>
+    <!-- UI debug setting: no mock location app has been set [CHAR LIMIT=50] -->
+    <string name="mock_location_app_not_set">No mock location app set</string>
+    <!-- UI debug setting: mock location app has been set [CHAR LIMIT=50] -->
+    <string name="mock_location_app_set">Mock location app: <xliff:g id="app_name">%1$s</xliff:g></string>
+
     <!-- Setting Checkbox title whether to enable view attribute inspection -->
     <string name="debug_view_attributes">Enable view attribute inspection</string>
     <!-- Title of warning dialog about the implications of enabling USB debugging -->
diff --git a/res/xml/development_prefs.xml b/res/xml/development_prefs.xml
index 39866c9..32c96c1 100644
--- a/res/xml/development_prefs.xml
+++ b/res/xml/development_prefs.xml
@@ -86,10 +86,8 @@
             android:title="@string/bugreport_in_power"
             android:summary="@string/bugreport_in_power_summary"/>
 
-        <SwitchPreference
-            android:key="allow_mock_location"
-            android:title="@string/allow_mock_location"
-            android:summary="@string/allow_mock_location_summary"/>
+        <PreferenceScreen android:key="mock_location_app"
+            android:title="@string/mock_location_app" />
 
         <SwitchPreference
                 android:key="debug_view_attributes"
diff --git a/src/com/android/settings/AppPicker.java b/src/com/android/settings/AppPicker.java
index d525427..2447bcb 100644
--- a/src/com/android/settings/AppPicker.java
+++ b/src/com/android/settings/AppPicker.java
@@ -22,6 +22,8 @@
 import java.util.Comparator;
 import java.util.List;
 
+import android.content.pm.PackageInfo;
+import android.content.pm.PackageManager;
 import com.android.settings.applications.AppViewHolder;
 
 import android.app.ListActivity;
@@ -40,10 +42,20 @@
 public class AppPicker extends ListActivity {
     private AppListAdapter mAdapter;
 
+    public static final String EXTRA_REQUESTIING_PERMISSION
+            = "com.android.settings.extra.REQUESTIING_PERMISSION";
+    public static final String EXTRA_DEBUGGABLE = "com.android.settings.extra.DEBUGGABLE";
+
+    private String mPermissionName;
+    private boolean mDebuggableOnly;
+
     @Override
     protected void onCreate(Bundle icicle) {
         super.onCreate(icicle);
 
+        mPermissionName = getIntent().getStringExtra(EXTRA_REQUESTIING_PERMISSION);
+        mDebuggableOnly = getIntent().getBooleanExtra(EXTRA_DEBUGGABLE, false);
+
         mAdapter = new AppListAdapter(this);
         if (mAdapter.getCount() <= 0) {
             finish();
@@ -89,13 +101,41 @@
                 if (ai.uid == Process.SYSTEM_UID) {
                     continue;
                 }
-                // On a user build, we only allow debugging of apps that
-                // are marked as debuggable.  Otherwise (for platform development)
-                // we allow all apps.
-                if ((ai.flags&ApplicationInfo.FLAG_DEBUGGABLE) == 0
-                        && "user".equals(Build.TYPE)) {
-                    continue;
+
+                // Filter out apps that are not debuggable if required.
+                if (mDebuggableOnly) {
+                    // On a user build, we only allow debugging of apps that
+                    // are marked as debuggable.  Otherwise (for platform development)
+                    // we allow all apps.
+                    if ((ai.flags&ApplicationInfo.FLAG_DEBUGGABLE) == 0
+                            && "user".equals(Build.TYPE)) {
+                        continue;
+                    }
                 }
+
+                // Filter out apps that do not request the permission if required.
+                if (mPermissionName != null) {
+                    boolean requestsPermission = false;
+                    try {
+                        PackageInfo pi = getPackageManager().getPackageInfo(ai.packageName,
+                                PackageManager.GET_PERMISSIONS);
+                        if (pi.requestedPermissions == null) {
+                            continue;
+                        }
+                        for (String requestedPermission : pi.requestedPermissions) {
+                            if (requestedPermission.equals(mPermissionName)) {
+                                requestsPermission = true;
+                                break;
+                            }
+                        }
+                        if (!requestsPermission) {
+                            continue;
+                        }
+                    } catch (PackageManager.NameNotFoundException e) {
+                        continue;
+                    }
+                }
+
                 MyApplicationInfo info = new MyApplicationInfo();
                 info.info = ai;
                 info.label = info.info.loadLabel(getPackageManager()).toString();
diff --git a/src/com/android/settings/DevelopmentSettings.java b/src/com/android/settings/DevelopmentSettings.java
index 23191ad..a647dcc 100644
--- a/src/com/android/settings/DevelopmentSettings.java
+++ b/src/com/android/settings/DevelopmentSettings.java
@@ -16,9 +16,12 @@
 
 package com.android.settings;
 
+import android.Manifest;
 import android.app.Activity;
 import android.app.ActivityManagerNative;
 import android.app.AlertDialog;
+import android.app.AppOpsManager;
+import android.app.AppOpsManager.PackageOps;
 import android.app.Dialog;
 import android.app.admin.DevicePolicyManager;
 import android.app.backup.IBackupManager;
@@ -74,6 +77,7 @@
 import com.android.settings.search.Indexable;
 import com.android.settings.widget.SwitchBar;
 
+import java.lang.Process;
 import java.util.ArrayList;
 import java.util.Arrays;
 import java.util.HashSet;
@@ -106,7 +110,6 @@
     private static final String KEEP_SCREEN_ON = "keep_screen_on";
     private static final String BT_HCI_SNOOP_LOG = "bt_hci_snoop_log";
     private static final String ENABLE_OEM_UNLOCK = "oem_unlock_enable";
-    private static final String ALLOW_MOCK_LOCATION = "allow_mock_location";
     private static final String HDCP_CHECKING_KEY = "hdcp_checking";
     private static final String HDCP_CHECKING_PROPERTY = "persist.sys.hdcp_checking";
     private static final String LOCAL_BACKUP_PASSWORD = "local_backup_password";
@@ -119,6 +122,7 @@
 
     private static final String DEBUG_APP_KEY = "debug_app";
     private static final String WAIT_FOR_DEBUGGER_KEY = "wait_for_debugger";
+    private static final String MOCK_LOCATION_APP_KEY = "mock_location_app";
     private static final String VERIFY_APPS_OVER_USB_KEY = "verify_apps_over_usb";
     private static final String DEBUG_VIEW_ATTRIBUTES =  "debug_view_attributes";
     private static final String STRICT_MODE_KEY = "strict_mode";
@@ -174,6 +178,7 @@
     private static final String TERMINAL_APP_PACKAGE = "com.android.terminal";
 
     private static final int RESULT_DEBUG_APP = 1000;
+    private static final int RESULT_MOCK_LOCATION_APP = 1001;
 
     private static final String PERSISTENT_DATA_BLOCK_PROP = "ro.frp.pst";
 
@@ -181,6 +186,8 @@
 
     private static String DEFAULT_LOG_RING_BUFFER_SIZE_IN_BYTES = "262144"; // 256K
 
+    private static final int[] MOCK_LOCATOIN_APP_OPS = new int[] {AppOpsManager.OP_MOCK_LOCATION};
+
     private static final String MULTI_WINDOW_SYSTEM_PROPERTY = "persist.sys.debug.multi_window";
     private IWindowManager mWindowManager;
     private IBackupManager mBackupManager;
@@ -201,12 +208,15 @@
     private SwitchPreference mKeepScreenOn;
     private SwitchPreference mBtHciSnoopLog;
     private SwitchPreference mEnableOemUnlock;
-    private SwitchPreference mAllowMockLocation;
     private SwitchPreference mDebugViewAttributes;
 
     private PreferenceScreen mPassword;
     private String mDebugApp;
     private Preference mDebugAppPref;
+
+    private String mMockLocationApp;
+    private Preference mMockLocationAppPref;
+
     private SwitchPreference mWaitForDebugger;
     private SwitchPreference mVerifyAppsOverUsb;
     private SwitchPreference mWifiDisplayCertification;
@@ -317,7 +327,7 @@
             removePreference(mEnableOemUnlock);
             mEnableOemUnlock = null;
         }
-        mAllowMockLocation = findAndInitSwitchPref(ALLOW_MOCK_LOCATION);
+
         mDebugViewAttributes = findAndInitSwitchPref(DEBUG_VIEW_ATTRIBUTES);
         mPassword = (PreferenceScreen) findPreference(LOCAL_BACKUP_PASSWORD);
         mAllPrefs.add(mPassword);
@@ -333,6 +343,10 @@
         mDebugAppPref = findPreference(DEBUG_APP_KEY);
         mAllPrefs.add(mDebugAppPref);
         mWaitForDebugger = findAndInitSwitchPref(WAIT_FOR_DEBUGGER_KEY);
+
+        mMockLocationAppPref = findPreference(MOCK_LOCATION_APP_KEY);
+        mAllPrefs.add(mMockLocationAppPref);
+
         mVerifyAppsOverUsb = findAndInitSwitchPref(VERIFY_APPS_OVER_USB_KEY);
         if (!showVerifierSetting()) {
             if (debugDebuggingCategory != null) {
@@ -558,13 +572,12 @@
         if (mEnableOemUnlock != null) {
             updateSwitchPreference(mEnableOemUnlock, Utils.isOemUnlockEnabled(getActivity()));
         }
-        updateSwitchPreference(mAllowMockLocation, Settings.Secure.getInt(cr,
-                Settings.Secure.ALLOW_MOCK_LOCATION, 0) != 0);
         updateSwitchPreference(mDebugViewAttributes, Settings.Global.getInt(cr,
                 Settings.Global.DEBUG_VIEW_ATTRIBUTES, 0) != 0);
         updateHdcpValues();
         updatePasswordSummary();
         updateDebuggerOptions();
+        updateMockLocation();
         updateStrictModeVisualOptions();
         updatePointerLocationOptions();
         updateShowTouchesOptions();
@@ -677,6 +690,41 @@
         }
     }
 
+    private void writeMockLocation() {
+        AppOpsManager appOpsManager = (AppOpsManager) getSystemService(Context.APP_OPS_SERVICE);
+
+        // Disable the app op of the previous mock location app if such.
+        List<PackageOps> packageOps = appOpsManager.getPackagesForOps(MOCK_LOCATOIN_APP_OPS);
+        if (packageOps != null) {
+            // Should be one but in case we are in a bad state due to use of command line tools.
+            for (PackageOps packageOp : packageOps) {
+                if (packageOp.getOps().get(0).getMode() != AppOpsManager.MODE_ERRORED) {
+                    String oldMockLocationApp = packageOp.getPackageName();
+                    try {
+                        ApplicationInfo ai = getActivity().getPackageManager().getApplicationInfo(
+                                oldMockLocationApp, PackageManager.GET_DISABLED_COMPONENTS);
+                        appOpsManager.setMode(AppOpsManager.OP_MOCK_LOCATION, ai.uid,
+                                oldMockLocationApp, AppOpsManager.MODE_ERRORED);
+                    } catch (NameNotFoundException e) {
+                        /* ignore */
+                    }
+                }
+            }
+        }
+
+        // Enable the app op of the new mock location app if such.
+        if (!TextUtils.isEmpty(mMockLocationApp)) {
+            try {
+                ApplicationInfo ai = getActivity().getPackageManager().getApplicationInfo(
+                        mMockLocationApp, PackageManager.GET_DISABLED_COMPONENTS);
+                appOpsManager.setMode(AppOpsManager.OP_MOCK_LOCATION, ai.uid,
+                        mMockLocationApp, AppOpsManager.MODE_ALLOWED);
+            } catch (NameNotFoundException e) {
+                /* ignore */
+            }
+        }
+    }
+
     private static void resetDebuggerOptions() {
         try {
             ActivityManagerNative.getDefault().setDebugApp(
@@ -709,6 +757,39 @@
         }
     }
 
+    private void updateMockLocation() {
+        AppOpsManager appOpsManager = (AppOpsManager) getSystemService(Context.APP_OPS_SERVICE);
+
+        List<PackageOps> packageOps = appOpsManager.getPackagesForOps(MOCK_LOCATOIN_APP_OPS);
+        if (packageOps != null) {
+            for (PackageOps packageOp : packageOps) {
+                if (packageOp.getOps().get(0).getMode() == AppOpsManager.MODE_ALLOWED) {
+                    mMockLocationApp = packageOps.get(0).getPackageName();
+                    break;
+                }
+            }
+        }
+
+        if (!TextUtils.isEmpty(mMockLocationApp)) {
+            String label = mMockLocationApp;
+            try {
+                ApplicationInfo ai = getActivity().getPackageManager().getApplicationInfo(
+                        mMockLocationApp, PackageManager.GET_DISABLED_COMPONENTS);
+                CharSequence appLabel = getPackageManager().getApplicationLabel(ai);
+                if (appLabel != null) {
+                    label = appLabel.toString();
+                }
+            } catch (PackageManager.NameNotFoundException e) {
+                /* ignore */
+            }
+
+            mMockLocationAppPref.setSummary(getString(R.string.mock_location_app_set, label));
+            mHaveDebugSettings = true;
+        } else {
+            mMockLocationAppPref.setSummary(getString(R.string.mock_location_app_not_set));
+        }
+    }
+
     private void updateVerifyAppsOverUsbOptions() {
         updateSwitchPreference(mVerifyAppsOverUsb, Settings.Global.getInt(getActivity().getContentResolver(),
                 Settings.Global.PACKAGE_VERIFIER_INCLUDE_ADB, 1) != 0);
@@ -1506,6 +1587,12 @@
                 writeDebuggerOptions();
                 updateDebuggerOptions();
             }
+        } else if (requestCode == RESULT_MOCK_LOCATION_APP) {
+            if (resultCode == Activity.RESULT_OK) {
+                mMockLocationApp = data.getAction();
+                writeMockLocation();
+                updateMockLocation();
+            }
         } else if (requestCode == REQUEST_CODE_ENABLE_OEM_UNLOCK) {
             if (resultCode == Activity.RESULT_OK) {
                 if (mEnableOemUnlock.isChecked()) {
@@ -1574,16 +1661,19 @@
                     Utils.setOemUnlockEnabled(getActivity(), false);
                 }
             }
-        } else if (preference == mAllowMockLocation) {
-            Settings.Secure.putInt(getActivity().getContentResolver(),
-                    Settings.Secure.ALLOW_MOCK_LOCATION,
-                    mAllowMockLocation.isChecked() ? 1 : 0);
+        } else if (preference == mMockLocationAppPref) {
+            Intent intent = new Intent(getActivity(), AppPicker.class);
+            intent.putExtra(AppPicker.EXTRA_REQUESTIING_PERMISSION,
+                    Manifest.permission.ACCESS_MOCK_LOCATION);
+            startActivityForResult(intent, RESULT_MOCK_LOCATION_APP);
         } else if (preference == mDebugViewAttributes) {
             Settings.Global.putInt(getActivity().getContentResolver(),
                     Settings.Global.DEBUG_VIEW_ATTRIBUTES,
                     mDebugViewAttributes.isChecked() ? 1 : 0);
         } else if (preference == mDebugAppPref) {
-            startActivityForResult(new Intent(getActivity(), AppPicker.class), RESULT_DEBUG_APP);
+            Intent intent = new Intent(getActivity(), AppPicker.class);
+            intent.putExtra(AppPicker.EXTRA_DEBUGGABLE, true);
+            startActivityForResult(intent, RESULT_DEBUG_APP);
         } else if (preference == mWaitForDebugger) {
             writeDebuggerOptions();
         } else if (preference == mVerifyAppsOverUsb) {