Remove some unused fields and methods in WM

The deleted codes are no longer called or no-op.

Bug: 163976519
Test: CtsWindowManagerDeviceTestCases

Change-Id: Iae3532b2d544245ec8d87cf44a2156cf0cb83fa4
diff --git a/services/core/java/com/android/server/wm/ActivityRecord.java b/services/core/java/com/android/server/wm/ActivityRecord.java
index 3de4cdc..eab1e31 100644
--- a/services/core/java/com/android/server/wm/ActivityRecord.java
+++ b/services/core/java/com/android/server/wm/ActivityRecord.java
@@ -86,8 +86,6 @@
 import static android.content.pm.ActivityInfo.SIZE_CHANGES_SUPPORTED_METADATA;
 import static android.content.pm.ActivityInfo.SIZE_CHANGES_SUPPORTED_OVERRIDE;
 import static android.content.pm.ActivityInfo.SIZE_CHANGES_UNSUPPORTED_OVERRIDE;
-import static android.content.pm.ActivityInfo.isFixedOrientationLandscape;
-import static android.content.pm.ActivityInfo.isFixedOrientationPortrait;
 import static android.content.res.Configuration.ASSETS_SEQ_UNDEFINED;
 import static android.content.res.Configuration.EMPTY;
 import static android.content.res.Configuration.ORIENTATION_LANDSCAPE;
@@ -4160,29 +4158,6 @@
                 true /* topToBottom */);
     }
 
-    WindowState getImeTargetBelowWindow(WindowState w) {
-        final int index = mChildren.indexOf(w);
-        if (index > 0) {
-            return mChildren.get(index - 1)
-                    .getWindow(WindowState::canBeImeTarget);
-        }
-        return null;
-    }
-
-    WindowState getHighestAnimLayerWindow(WindowState currentTarget) {
-        WindowState candidate = null;
-        for (int i = mChildren.indexOf(currentTarget); i >= 0; i--) {
-            final WindowState w = mChildren.get(i);
-            if (w.mRemoved) {
-                continue;
-            }
-            if (candidate == null) {
-                candidate = w;
-            }
-        }
-        return candidate;
-    }
-
     @Override
     boolean forAllActivities(Predicate<ActivityRecord> callback, boolean traverseTopToBottom) {
         return callback.test(this);
@@ -7017,11 +6992,6 @@
         clearThumbnail();
     }
 
-    @VisibleForTesting
-    WindowContainerThumbnail getThumbnail() {
-        return mThumbnail;
-    }
-
     private void clearThumbnail() {
         if (mThumbnail == null) {
             return;
@@ -7034,9 +7004,6 @@
         return mTransit;
     }
 
-    int getTransitFlags() {
-        return mTransitFlags;
-    }
 
     void registerRemoteAnimations(RemoteAnimationDefinition definition) {
         mRemoteAnimationDefinition = definition;
@@ -8089,20 +8056,6 @@
         super.onResize();
     }
 
-    /** Returns true if the configuration is compatible with this activity. */
-    boolean isConfigurationCompatible(Configuration config) {
-        final int orientation = getRequestedOrientation();
-        if (isFixedOrientationPortrait(orientation)
-                && config.orientation != ORIENTATION_PORTRAIT) {
-            return false;
-        }
-        if (isFixedOrientationLandscape(orientation)
-                && config.orientation != ORIENTATION_LANDSCAPE) {
-            return false;
-        }
-        return true;
-    }
-
     private boolean applyAspectRatio(Rect outBounds, Rect containingAppBounds,
             Rect containingBounds) {
         return applyAspectRatio(outBounds, containingAppBounds, containingBounds,
diff --git a/services/core/java/com/android/server/wm/ActivityTaskManagerService.java b/services/core/java/com/android/server/wm/ActivityTaskManagerService.java
index a1a357e..46f8e9f 100644
--- a/services/core/java/com/android/server/wm/ActivityTaskManagerService.java
+++ b/services/core/java/com/android/server/wm/ActivityTaskManagerService.java
@@ -496,9 +496,6 @@
      */
     private Configuration mTempConfig = new Configuration();
 
-    /** Temporary to avoid allocations. */
-    final StringBuilder mStringBuilder = new StringBuilder(256);
-
     /**
      * Whether normal application switches are allowed; a call to {@link #stopAppSwitches()
      * disables this.
@@ -3081,11 +3078,6 @@
         throw new SecurityException(msg);
     }
 
-    @VisibleForTesting
-    int checkGetTasksPermission(String permission, int pid, int uid) {
-        return checkPermission(permission, pid, uid);
-    }
-
     static int checkPermission(String permission, int pid, int uid) {
         if (permission == null) {
             return PackageManager.PERMISSION_DENIED;
@@ -3105,10 +3097,10 @@
             return true;
         }
 
-        boolean allowed = checkGetTasksPermission(android.Manifest.permission.REAL_GET_TASKS,
+        boolean allowed = checkPermission(android.Manifest.permission.REAL_GET_TASKS,
                 callingPid, callingUid) == PackageManager.PERMISSION_GRANTED;
         if (!allowed) {
-            if (checkGetTasksPermission(android.Manifest.permission.GET_TASKS,
+            if (checkPermission(android.Manifest.permission.GET_TASKS,
                     callingPid, callingUid) == PackageManager.PERMISSION_GRANTED) {
                 // Temporary compatibility: some existing apps on the system image may
                 // still be requesting the old permission and not switched to the new
diff --git a/services/core/java/com/android/server/wm/DisplayContent.java b/services/core/java/com/android/server/wm/DisplayContent.java
index 42269d4..befb335 100644
--- a/services/core/java/com/android/server/wm/DisplayContent.java
+++ b/services/core/java/com/android/server/wm/DisplayContent.java
@@ -553,9 +553,6 @@
     /** Windows removed since {@link #mCurrentFocus} was set to null. Used for ANR blaming. */
     final ArrayList<WindowState> mWinRemovedSinceNullFocus = new ArrayList<>();
 
-    /** Windows whose client's insets states are not up-to-date. */
-    final ArrayList<WindowState> mWinInsetsChanged = new ArrayList<>();
-
     private ScreenRotationAnimation mScreenRotationAnimation;
 
     /**
@@ -635,9 +632,6 @@
     /** The surface parent of the IME container. */
     private SurfaceControl mInputMethodSurfaceParent;
 
-    /** If {@code true} hold off on modifying the animation layer of {@link #mImeLayeringTarget} */
-    boolean mImeLayeringTargetWaitingAnim;
-
     /** The screenshot IME surface to place on the task while transitioning to the next task. */
     SurfaceControl mImeScreenshot;
 
@@ -4969,12 +4963,6 @@
         }
     }
 
-    void assignRootTaskOrdering() {
-        forAllTaskDisplayAreas(taskDisplayArea -> {
-            taskDisplayArea.assignRootTaskOrdering(getPendingTransaction());
-        });
-    }
-
     /**
      * Increment the deferral count to determine whether to update the IME target.
      */
diff --git a/services/core/java/com/android/server/wm/DisplayPolicy.java b/services/core/java/com/android/server/wm/DisplayPolicy.java
index 750c890..180ee61 100644
--- a/services/core/java/com/android/server/wm/DisplayPolicy.java
+++ b/services/core/java/com/android/server/wm/DisplayPolicy.java
@@ -164,7 +164,6 @@
 import com.android.server.policy.WindowManagerPolicy.WindowManagerFuncs;
 import com.android.server.statusbar.StatusBarManagerInternal;
 import com.android.server.wallpaper.WallpaperManagerInternal;
-import com.android.server.wm.InputMonitor.EventReceiverInputConsumer;
 
 import java.io.PrintWriter;
 import java.util.ArrayList;
@@ -395,7 +394,6 @@
 
     // -------- PolicyHandler --------
     private static final int MSG_REQUEST_TRANSIENT_BARS = 2;
-    private static final int MSG_DISPOSE_INPUT_CONSUMER = 3;
     private static final int MSG_ENABLE_POINTER_LOCATION = 4;
     private static final int MSG_DISABLE_POINTER_LOCATION = 5;
 
@@ -424,9 +422,6 @@
                         }
                     }
                     break;
-                case MSG_DISPOSE_INPUT_CONSUMER:
-                    disposeInputConsumer((EventReceiverInputConsumer) msg.obj);
-                    break;
                 case MSG_ENABLE_POINTER_LOCATION:
                     enablePointerLocation();
                     break;
@@ -2573,12 +2568,6 @@
         mImmersiveModeConfirmation.confirmCurrentPrompt();
     }
 
-    private void disposeInputConsumer(EventReceiverInputConsumer inputConsumer) {
-        if (inputConsumer != null) {
-            inputConsumer.dispose();
-        }
-    }
-
     boolean isKeyguardShowing() {
         return mService.mPolicy.isKeyguardShowing();
     }
diff --git a/services/core/java/com/android/server/wm/InputMonitor.java b/services/core/java/com/android/server/wm/InputMonitor.java
index fa4d27c..d17c109 100644
--- a/services/core/java/com/android/server/wm/InputMonitor.java
+++ b/services/core/java/com/android/server/wm/InputMonitor.java
@@ -54,14 +54,12 @@
 import android.graphics.Region;
 import android.os.Handler;
 import android.os.IBinder;
-import android.os.Looper;
 import android.os.Trace;
 import android.os.UserHandle;
 import android.util.ArrayMap;
 import android.util.EventLog;
 import android.util.Slog;
 import android.view.InputChannel;
-import android.view.InputEventReceiver;
 import android.view.InputWindowHandle;
 import android.view.SurfaceControl;
 
@@ -112,44 +110,6 @@
     private WeakReference<ActivityRecord> mActiveRecentsActivity = null;
     private WeakReference<ActivityRecord> mActiveRecentsLayerRef = null;
 
-    /**
-     * Representation of a input consumer that the policy has added to the window manager to consume
-     * input events going to windows below it.
-     */
-    static final class EventReceiverInputConsumer extends InputConsumerImpl {
-        private InputMonitor mInputMonitor;
-        private final InputEventReceiver mInputEventReceiver;
-
-        EventReceiverInputConsumer(WindowManagerService service, InputMonitor monitor,
-                                   Looper looper, String name,
-                                   InputEventReceiver.Factory inputEventReceiverFactory,
-                                   int clientPid, UserHandle clientUser, int displayId) {
-            super(service, null /* token */, name, null /* inputChannel */, clientPid, clientUser,
-                    displayId);
-            mInputMonitor = monitor;
-            mInputEventReceiver = inputEventReceiverFactory.createInputEventReceiver(
-                    mClientChannel, looper);
-        }
-
-        /** Removes the input consumer from the window manager. */
-        void dismiss() {
-            synchronized (mService.mGlobalLock) {
-                mInputMonitor.mInputConsumers.remove(mName);
-                hide(mInputMonitor.mInputTransaction);
-                mInputMonitor.updateInputWindowsLw(true /* force */);
-            }
-        }
-
-        /** Disposes the input consumer and input receiver from the associated thread. */
-        void dispose() {
-            synchronized (mService.mGlobalLock) {
-                disposeChannelsLw(mInputMonitor.mInputTransaction);
-                mInputEventReceiver.dispose();
-                mInputMonitor.updateInputWindowsLw(true /* force */);
-            }
-        }
-    }
-
     private class UpdateInputWindows implements Runnable {
         @Override
         public void run() {
diff --git a/services/core/java/com/android/server/wm/InsetsStateController.java b/services/core/java/com/android/server/wm/InsetsStateController.java
index b46b2f7..3f573fa 100644
--- a/services/core/java/com/android/server/wm/InsetsStateController.java
+++ b/services/core/java/com/android/server/wm/InsetsStateController.java
@@ -291,19 +291,10 @@
         for (int i = mProviders.size() - 1; i >= 0; i--) {
             mProviders.valueAt(i).onPostLayout();
         }
-        final ArrayList<WindowState> winInsetsChanged = mDisplayContent.mWinInsetsChanged;
         if (!mLastState.equals(mState)) {
             mLastState.set(mState, true /* copySources */);
             notifyInsetsChanged();
-        } else {
-            // The global insets state has not changed but there might be windows whose conditions
-            // (e.g., z-order) have changed. They can affect the insets states that we dispatch to
-            // the clients.
-            for (int i = winInsetsChanged.size() - 1; i >= 0; i--) {
-                mDispatchInsetsChanged.accept(winInsetsChanged.get(i));
-            }
         }
-        winInsetsChanged.clear();
         Trace.traceEnd(TRACE_TAG_WINDOW_MANAGER);
     }
 
diff --git a/services/core/java/com/android/server/wm/Session.java b/services/core/java/com/android/server/wm/Session.java
index 6b7f92a..b8b9bcc 100644
--- a/services/core/java/com/android/server/wm/Session.java
+++ b/services/core/java/com/android/server/wm/Session.java
@@ -16,7 +16,6 @@
 
 package com.android.server.wm;
 
-import static android.Manifest.permission.DEVICE_POWER;
 import static android.Manifest.permission.HIDE_NON_SYSTEM_OVERLAY_WINDOWS;
 import static android.Manifest.permission.HIDE_OVERLAY_WINDOWS;
 import static android.Manifest.permission.INTERNAL_SYSTEM_WINDOW;
@@ -107,7 +106,6 @@
 
     final boolean mCanCreateSystemApplicationOverlay;
     final boolean mCanHideNonSystemOverlayWindows;
-    final boolean mCanAcquireSleepToken;
     private AlertWindowNotification mAlertWindowNotification;
     private boolean mShowingAlertWindowNotificationAllowed;
     private boolean mClientDead = false;
@@ -134,8 +132,6 @@
                         == PERMISSION_GRANTED;
         mCanStartTasksFromRecents = service.mContext.checkCallingOrSelfPermission(
                 START_TASKS_FROM_RECENTS) == PERMISSION_GRANTED;
-        mCanAcquireSleepToken = service.mContext.checkCallingOrSelfPermission(DEVICE_POWER)
-                == PERMISSION_GRANTED;
         mShowingAlertWindowNotificationAllowed = mService.mShowAlertWindowNotifications;
         mDragDropController = mService.mDragDropController;
         StringBuilder sb = new StringBuilder();
diff --git a/services/core/java/com/android/server/wm/Task.java b/services/core/java/com/android/server/wm/Task.java
index 6987cdb..8370b86 100644
--- a/services/core/java/com/android/server/wm/Task.java
+++ b/services/core/java/com/android/server/wm/Task.java
@@ -471,12 +471,6 @@
     // to layout without loading all the task snapshots
     final PersistedTaskSnapshotData mLastTaskSnapshotData;
 
-    // If set to true, the task will report that it is not in the floating
-    // state regardless of it's root task affiliation. As the floating state drives
-    // production of content insets this can be used to preserve them across
-    // root task moves and we in fact do so when moving from full screen to pinned.
-    private boolean mPreserveNonFloatingState = false;
-
     private Dimmer mDimmer = new Dimmer(this);
     private final Rect mTmpDimBoundsRect = new Rect();
 
@@ -2582,11 +2576,6 @@
         reparent(rootTask, position);
 
         rootTask.positionChildAt(position, this, moveParents);
-
-        // If we are moving from the fullscreen root task to the root pinned task then we want to
-        // preserve our insets so that there will not be a jump in the area covered by system
-        // decorations. We rely on the pinned animation to later unset this value.
-        mPreserveNonFloatingState = rootTask.inPinnedWindowingMode();
     }
 
     public int setBounds(Rect bounds, boolean forceResize) {
@@ -2899,16 +2888,6 @@
         mForceShowForAllUsers = forceShowForAllUsers;
     }
 
-    /**
-     * When we are in a floating root task (Freeform, Pinned, ...) we calculate
-     * insets differently. However if we are animating to the fullscreen root task
-     * we need to begin calculating insets as if we were fullscreen, otherwise
-     * we will have a jump at the end.
-     */
-    boolean isFloating() {
-        return getWindowConfiguration().tasksAreFloating() && !mPreserveNonFloatingState;
-    }
-
     /** Returns the top-most activity that occludes the given one, or {@code null} if none. */
     @Nullable
     ActivityRecord getOccludingActivityAbove(ActivityRecord activity) {
@@ -3246,10 +3225,6 @@
         return "Task=" + mTaskId;
     }
 
-    void clearPreserveNonFloatingState() {
-        mPreserveNonFloatingState = false;
-    }
-
     @Override
     Dimmer getDimmer() {
         // If the window is in multi-window mode, we want to dim at the Task level to ensure the dim
diff --git a/services/core/java/com/android/server/wm/WallpaperController.java b/services/core/java/com/android/server/wm/WallpaperController.java
index d93b649..810a853 100644
--- a/services/core/java/com/android/server/wm/WallpaperController.java
+++ b/services/core/java/com/android/server/wm/WallpaperController.java
@@ -97,12 +97,6 @@
     // Time we wait after a timeout before trying to wait again.
     private static final long WALLPAPER_TIMEOUT_RECOVERY = 10000;
 
-    // Set to the wallpaper window we would like to hide once the transition animations are done.
-    // This is useful in cases where we don't want the wallpaper to be hidden when the close app
-    // is a wallpaper target and is done animating out, but the opening app isn't a wallpaper
-    // target and isn't done animating in.
-    WindowState mDeferredHideWallpaper = null;
-
     // We give a wallpaper up to 500ms to finish drawing before playing app transitions.
     private static final long WALLPAPER_DRAW_PENDING_TIMEOUT_DURATION = 500;
     private static final int WALLPAPER_DRAW_NORMAL = 0;
diff --git a/services/core/java/com/android/server/wm/WindowManagerService.java b/services/core/java/com/android/server/wm/WindowManagerService.java
index 5d916ea..c8e3c6a 100644
--- a/services/core/java/com/android/server/wm/WindowManagerService.java
+++ b/services/core/java/com/android/server/wm/WindowManagerService.java
@@ -169,10 +169,8 @@
 import android.database.ContentObserver;
 import android.graphics.Bitmap;
 import android.graphics.Insets;
-import android.graphics.Matrix;
 import android.graphics.Point;
 import android.graphics.Rect;
-import android.graphics.RectF;
 import android.graphics.Region;
 import android.hardware.configstore.V1_0.OptionalBool;
 import android.hardware.configstore.V1_1.DisplayOrientation;
@@ -343,8 +341,6 @@
         implements Watchdog.Monitor, WindowManagerPolicy.WindowManagerFuncs {
     private static final String TAG = TAG_WITH_CLASS_NAME ? "WindowManagerService" : TAG_WM;
 
-    private static final String WM_USE_BLAST_ADAPTER_FLAG = "wm_use_blast_adapter";
-
     static final int LAYOUT_REPEAT_THRESHOLD = 4;
 
     static final boolean PROFILE_ORIENTATION = false;
@@ -646,13 +642,7 @@
     StrictModeFlash mStrictModeFlash;
     EmulatorDisplayOverlay mEmulatorDisplayOverlay;
 
-    final float[] mTmpFloats = new float[9];
     final Rect mTmpRect = new Rect();
-    final Rect mTmpRect2 = new Rect();
-    final Rect mTmpRect3 = new Rect();
-    final RectF mTmpRectF = new RectF();
-
-    final Matrix mTmpTransform = new Matrix();
 
     boolean mDisplayReady;
     boolean mSafeMode;
@@ -1059,8 +1049,6 @@
         public void focusChanged();
     }
 
-    final Configuration mTempConfiguration = new Configuration();
-
     final HighRefreshRateDenylist mHighRefreshRateDenylist;
 
     // Maintainer of a collection of all possible DisplayInfo for all configurations of the
@@ -1156,11 +1144,6 @@
         void onAppFreezeTimeout();
     }
 
-    private static WindowManagerService sInstance;
-    static WindowManagerService getInstance() {
-        return sInstance;
-    }
-
     public static WindowManagerService main(final Context context, final InputManagerService im,
             final boolean showBootMsgs, final boolean onlyCore, WindowManagerPolicy policy,
             ActivityTaskManagerService atm) {
@@ -1180,11 +1163,12 @@
             displayWindowSettingsProvider, Supplier<SurfaceControl.Transaction> transactionFactory,
             Supplier<Surface> surfaceFactory,
             Function<SurfaceSession, SurfaceControl.Builder> surfaceControlFactory) {
+        final WindowManagerService[] wms = new WindowManagerService[1];
         DisplayThread.getHandler().runWithScissors(() ->
-                sInstance = new WindowManagerService(context, im, showBootMsgs, onlyCore, policy,
+                wms[0] = new WindowManagerService(context, im, showBootMsgs, onlyCore, policy,
                         atm, displayWindowSettingsProvider, transactionFactory, surfaceFactory,
                         surfaceControlFactory), 0);
-        return sInstance;
+        return wms[0];
     }
 
     private void initPolicy() {
@@ -3015,15 +2999,6 @@
                 aspectRatio);
     }
 
-    void getRootTaskBounds(int windowingMode, int activityType, Rect bounds) {
-        final Task rootTask = mRoot.getRootTask(windowingMode, activityType);
-        if (rootTask != null) {
-            rootTask.getBounds(bounds);
-            return;
-        }
-        bounds.setEmpty();
-    }
-
     /**
      * Notifies window manager that {@link DisplayPolicy#isShowingDreamLw} has changed.
      */
@@ -6990,12 +6965,6 @@
         }
     }
 
-    void intersectDisplayInsetBounds(Rect display, Rect insets, Rect inOutBounds) {
-        mTmpRect3.set(display);
-        mTmpRect3.inset(insets);
-        inOutBounds.intersect(mTmpRect3);
-    }
-
     MousePositionTracker mMousePositionTracker = new MousePositionTracker();
 
     private static class MousePositionTracker implements PointerEventListener {
diff --git a/services/core/java/com/android/server/wm/WindowState.java b/services/core/java/com/android/server/wm/WindowState.java
index 65389f0..cd4a0de 100644
--- a/services/core/java/com/android/server/wm/WindowState.java
+++ b/services/core/java/com/android/server/wm/WindowState.java
@@ -58,7 +58,6 @@
 import static android.view.WindowManager.LayoutParams.LAYOUT_IN_DISPLAY_CUTOUT_MODE_ALWAYS;
 import static android.view.WindowManager.LayoutParams.MATCH_PARENT;
 import static android.view.WindowManager.LayoutParams.PRIVATE_FLAG_COMPATIBLE_WINDOW;
-import static android.view.WindowManager.LayoutParams.PRIVATE_FLAG_LAYOUT_CHILD_WINDOW_IN_PARENT_FRAME;
 import static android.view.WindowManager.LayoutParams.PRIVATE_FLAG_NOT_MAGNIFIABLE;
 import static android.view.WindowManager.LayoutParams.PRIVATE_FLAG_NO_MOVE_ANIMATION;
 import static android.view.WindowManager.LayoutParams.PRIVATE_FLAG_TRUSTED_OVERLAY;
@@ -651,7 +650,6 @@
     private PowerManager.WakeLock mDrawLock;
 
     private final Rect mTmpRect = new Rect();
-    private final Rect mTmpRect2 = new Rect();
     private final Point mTmpPoint = new Point();
 
     private final Transaction mTmpTransaction;
@@ -1229,15 +1227,6 @@
         return mOwnerCanAddInternalSystemWindow;
     }
 
-    /**
-     * Returns {@code true} if the window owner has the permission to acquire a sleep token when
-     * it's visible. That is, they have the permission
-     * {@link androidManifest.permission#DEVICE_POWER}.
-     */
-    boolean canAcquireSleepToken() {
-        return mSession.mCanAcquireSleepToken;
-    }
-
     boolean skipLayout() {
         if (mWillReplaceWindow && (mAnimatingExit || !mReplacingRemoveRequested)) {
             // This window is being replaced and either already got information that it's being
@@ -1378,21 +1367,11 @@
         return mDisableFlags;
     }
 
-    /** Gets the layer at which this window's surface will be Z-ordered. */
-    int getSurfaceLayer() {
-        return mLayer;
-    }
-
     @Override
     public int getBaseType() {
         return getTopParentWindow().mAttrs.type;
     }
 
-    /** Returns true if this window is participating in voice interaction. */
-    boolean isVoiceInteraction() {
-        return mActivityRecord != null && mActivityRecord.mVoiceInteraction;
-    }
-
     boolean setReportResizeHints() {
         return mWindowFrames.setReportResizeHints();
     }
@@ -1719,14 +1698,6 @@
                 && (mActivityRecord.firstWindowDrawn || mActivityRecord.startingDisplayed);
     }
 
-    boolean isIdentityMatrix(float dsdx, float dtdx, float dsdy, float dtdy) {
-        if (dsdx < .99999f || dsdx > 1.00001f) return false;
-        if (dtdy < .99999f || dtdy > 1.00001f) return false;
-        if (dtdx < -.000001f || dtdx > .000001f) return false;
-        if (dsdy < -.000001f || dsdy > .000001f) return false;
-        return true;
-    }
-
     void prelayout() {
         if (hasCompatScale()) {
             if (mOverrideScale != 1f) {
@@ -3326,15 +3297,6 @@
         return mAnimatingExit || (mActivityRecord != null && mActivityRecord.isClosingOrEnteringPip());
     }
 
-    void addWinAnimatorToList(ArrayList<WindowStateAnimator> animators) {
-        animators.add(mWinAnimator);
-
-        for (int i = mChildren.size() - 1; i >= 0; --i) {
-            final WindowState c = mChildren.get(i);
-            c.addWinAnimatorToList(animators);
-        }
-    }
-
     void sendAppVisibilityToClients() {
         super.sendAppVisibilityToClients();
 
@@ -4286,11 +4248,6 @@
         return mIsChildWindow;
     }
 
-    boolean layoutInParentFrame() {
-        return mIsChildWindow
-                && (mAttrs.privateFlags & PRIVATE_FLAG_LAYOUT_CHILD_WINDOW_IN_PARENT_FRAME) != 0;
-    }
-
     /**
      * Returns true if any window added by an application process that if of type
      * {@link android.view.WindowManager.LayoutParams#TYPE_TOAST} or that requires that requires
diff --git a/services/core/java/com/android/server/wm/WindowStateAnimator.java b/services/core/java/com/android/server/wm/WindowStateAnimator.java
index 4db853e..b147455 100644
--- a/services/core/java/com/android/server/wm/WindowStateAnimator.java
+++ b/services/core/java/com/android/server/wm/WindowStateAnimator.java
@@ -118,9 +118,6 @@
      * window is first added or shown, cleared when the callback has been made. */
     boolean mEnteringAnimation;
 
-    /** The pixel format of the underlying SurfaceControl */
-    int mSurfaceFormat;
-
     /** This is set when there is no Surface */
     static final int NO_SURFACE = 0;
     /** This is set after the Surface has been created but before the window has been drawn. During
@@ -347,8 +344,6 @@
             mSurfaceController.setColorSpaceAgnostic((attrs.privateFlags
                     & WindowManager.LayoutParams.PRIVATE_FLAG_COLOR_SPACE_AGNOSTIC) != 0);
 
-            mSurfaceFormat = format;
-
             w.setHasSurface(true);
             // The surface instance is changed. Make sure the input info can be applied to the
             // new surface, e.g. relaunch activity.
@@ -584,27 +579,6 @@
         }
     }
 
-    /**
-     * Try to change the pixel format without recreating the surface. This
-     * will be common in the case of changing from PixelFormat.OPAQUE to
-     * PixelFormat.TRANSLUCENT in the hardware-accelerated case as both
-     * requested formats resolve to the same underlying SurfaceControl format
-     * @return True if format was succesfully changed, false otherwise
-     */
-    boolean tryChangeFormatInPlaceLocked() {
-        if (mSurfaceController == null) {
-            return false;
-        }
-        final LayoutParams attrs = mWin.getAttrs();
-        final boolean isHwAccelerated = (attrs.flags & FLAG_HARDWARE_ACCELERATED) != 0;
-        final int format = isHwAccelerated ? PixelFormat.TRANSLUCENT : attrs.format;
-        if (format == mSurfaceFormat) {
-            setOpaqueLocked(!PixelFormat.formatHasAlpha(attrs.format));
-            return true;
-        }
-        return false;
-    }
-
     void setOpaqueLocked(boolean isOpaque) {
         if (mSurfaceController == null) {
             return;
diff --git a/services/core/java/com/android/server/wm/WindowToken.java b/services/core/java/com/android/server/wm/WindowToken.java
index 1231417..34b63ac 100644
--- a/services/core/java/com/android/server/wm/WindowToken.java
+++ b/services/core/java/com/android/server/wm/WindowToken.java
@@ -365,11 +365,6 @@
     }
 
     @Override
-    public void onConfigurationChanged(Configuration newParentConfig) {
-        super.onConfigurationChanged(newParentConfig);
-    }
-
-    @Override
     void assignLayer(SurfaceControl.Transaction t, int layer) {
         if (windowType == TYPE_DOCK_DIVIDER) {
             // See {@link DisplayContent#mSplitScreenDividerAnchor}