WM: Removes setSize from buffer-less surfaces

- Make a better distinction between surface bounds and buffer size by renaming setSize to
  setBufferSize and removing setSize for all buffer-less surfaces.
- Adds an error check in SurfaceControl to ensure buffer size is only set for buffer-less surfaces.
- Updates color fade surface to use passed in transaction object.

Bug:114413815
Test: go/wm-smoke
Test: atest FrameworksServicesTests:DimmerTests
Test: atest FrameworksServicesTests:SurfaceAnimatorTest
Change-Id: I88bd1452d6b3b3009e73e26986027d6a5a9efebc
diff --git a/services/core/java/com/android/server/display/ColorFade.java b/services/core/java/com/android/server/display/ColorFade.java
index 33525fd..f2c539c 100644
--- a/services/core/java/com/android/server/display/ColorFade.java
+++ b/services/core/java/com/android/server/display/ColorFade.java
@@ -16,16 +16,7 @@
 
 package com.android.server.display;
 
-import java.io.IOException;
-import java.io.InputStream;
-import java.io.InputStreamReader;
-import java.io.PrintWriter;
-import java.nio.ByteBuffer;
-import java.nio.ByteOrder;
-import java.nio.FloatBuffer;
-
 import android.content.Context;
-import android.graphics.PixelFormat;
 import android.graphics.SurfaceTexture;
 import android.hardware.display.DisplayManagerInternal;
 import android.hardware.display.DisplayManagerInternal.DisplayTransactionListener;
@@ -34,20 +25,29 @@
 import android.opengl.EGLContext;
 import android.opengl.EGLDisplay;
 import android.opengl.EGLSurface;
-import android.opengl.GLES20;
 import android.opengl.GLES11Ext;
+import android.opengl.GLES20;
 import android.util.Slog;
 import android.view.DisplayInfo;
-import android.view.Surface.OutOfResourcesException;
 import android.view.Surface;
+import android.view.Surface.OutOfResourcesException;
 import android.view.SurfaceControl;
+import android.view.SurfaceControl.Transaction;
 import android.view.SurfaceSession;
 
-import libcore.io.Streams;
-
 import com.android.server.LocalServices;
 import com.android.server.policy.WindowManagerPolicy;
 
+import libcore.io.Streams;
+
+import java.io.IOException;
+import java.io.InputStream;
+import java.io.InputStreamReader;
+import java.io.PrintWriter;
+import java.nio.ByteBuffer;
+import java.nio.ByteOrder;
+import java.nio.FloatBuffer;
+
 /**
  * <p>
  * Animates a screen transition from on to off or off to on by applying
@@ -569,37 +569,31 @@
             mSurfaceSession = new SurfaceSession();
         }
 
-        SurfaceControl.openTransaction();
-        try {
-            if (mSurfaceControl == null) {
-                try {
-                    int flags;
-                    if (mMode == MODE_FADE) {
-                        flags = SurfaceControl.FX_SURFACE_DIM | SurfaceControl.HIDDEN;
-                    } else {
-                        flags = SurfaceControl.OPAQUE | SurfaceControl.HIDDEN;
-                    }
-                    mSurfaceControl = new SurfaceControl.Builder(mSurfaceSession)
-                            .setName("ColorFade")
-                            .setSize(mDisplayWidth, mDisplayHeight)
-                            .setFlags(flags)
-                            .build();
-                } catch (OutOfResourcesException ex) {
-                    Slog.e(TAG, "Unable to create surface.", ex);
-                    return false;
+        if (mSurfaceControl == null) {
+            Transaction t = new Transaction();
+            try {
+                final SurfaceControl.Builder builder =
+                        new SurfaceControl.Builder(mSurfaceSession).setName("ColorFade");
+                if (mMode == MODE_FADE) {
+                    builder.setColorLayer(true);
+                } else {
+                    builder.setBufferSize(mDisplayWidth, mDisplayHeight);
                 }
-
-                mSurfaceControl.setLayerStack(mDisplayLayerStack);
-                mSurfaceControl.setSize(mDisplayWidth, mDisplayHeight);
-                mSurface = new Surface();
-                mSurface.copyFrom(mSurfaceControl);
-
-                mSurfaceLayout = new NaturalSurfaceLayout(mDisplayManagerInternal,
-                        mDisplayId, mSurfaceControl);
-                mSurfaceLayout.onDisplayTransaction();
+                mSurfaceControl = builder.build();
+            } catch (OutOfResourcesException ex) {
+                Slog.e(TAG, "Unable to create surface.", ex);
+                return false;
             }
-        } finally {
-            SurfaceControl.closeTransaction();
+
+            t.setLayerStack(mSurfaceControl, mDisplayLayerStack);
+            t.setWindowCrop(mSurfaceControl, mDisplayWidth, mDisplayHeight);
+            mSurface = new Surface();
+            mSurface.copyFrom(mSurfaceControl);
+
+            mSurfaceLayout = new NaturalSurfaceLayout(mDisplayManagerInternal,
+                    mDisplayId, mSurfaceControl);
+            mSurfaceLayout.onDisplayTransaction(t);
+            t.apply();
         }
         return true;
     }
@@ -746,7 +740,7 @@
         }
 
         @Override
-        public void onDisplayTransaction() {
+        public void onDisplayTransaction(Transaction t) {
             synchronized (this) {
                 if (mSurfaceControl == null) {
                     return;
@@ -755,21 +749,21 @@
                 DisplayInfo displayInfo = mDisplayManagerInternal.getDisplayInfo(mDisplayId);
                 switch (displayInfo.rotation) {
                     case Surface.ROTATION_0:
-                        mSurfaceControl.setPosition(0, 0);
-                        mSurfaceControl.setMatrix(1, 0, 0, 1);
+                        t.setPosition(mSurfaceControl, 0, 0);
+                        t.setMatrix(mSurfaceControl, 1, 0, 0, 1);
                         break;
                     case Surface.ROTATION_90:
-                        mSurfaceControl.setPosition(0, displayInfo.logicalHeight);
-                        mSurfaceControl.setMatrix(0, -1, 1, 0);
+                        t.setPosition(mSurfaceControl, 0, displayInfo.logicalHeight);
+                        t.setMatrix(mSurfaceControl, 0, -1, 1, 0);
                         break;
                     case Surface.ROTATION_180:
-                        mSurfaceControl.setPosition(displayInfo.logicalWidth,
+                        t.setPosition(mSurfaceControl, displayInfo.logicalWidth,
                                 displayInfo.logicalHeight);
-                        mSurfaceControl.setMatrix(-1, 0, 0, -1);
+                        t.setMatrix(mSurfaceControl, -1, 0, 0, -1);
                         break;
                     case Surface.ROTATION_270:
-                        mSurfaceControl.setPosition(displayInfo.logicalWidth, 0);
-                        mSurfaceControl.setMatrix(0, 1, -1, 0);
+                        t.setPosition(mSurfaceControl, displayInfo.logicalWidth, 0);
+                        t.setMatrix(mSurfaceControl, 0, 1, -1, 0);
                         break;
                 }
             }
diff --git a/services/core/java/com/android/server/display/DisplayManagerService.java b/services/core/java/com/android/server/display/DisplayManagerService.java
index d04fa23..360a7d1 100644
--- a/services/core/java/com/android/server/display/DisplayManagerService.java
+++ b/services/core/java/com/android/server/display/DisplayManagerService.java
@@ -497,7 +497,7 @@
 
         // List is self-synchronized copy-on-write.
         for (DisplayTransactionListener listener : mDisplayTransactionListeners) {
-            listener.onDisplayTransaction();
+            listener.onDisplayTransaction(t);
         }
     }
 
diff --git a/services/core/java/com/android/server/wm/AccessibilityController.java b/services/core/java/com/android/server/wm/AccessibilityController.java
index e4d1cfe..fe0b5c2 100644
--- a/services/core/java/com/android/server/wm/AccessibilityController.java
+++ b/services/core/java/com/android/server/wm/AccessibilityController.java
@@ -16,9 +16,9 @@
 
 package com.android.server.wm;
 
+import static android.view.WindowManager.LayoutParams.PRIVATE_FLAG_IS_ROUNDED_CORNERS_OVERLAY;
 import static android.view.WindowManager.LayoutParams.TYPE_DOCK_DIVIDER;
 import static android.view.WindowManager.LayoutParams.TYPE_MAGNIFICATION_OVERLAY;
-import static android.view.WindowManager.LayoutParams.PRIVATE_FLAG_IS_ROUNDED_CORNERS_OVERLAY;
 
 import static com.android.server.wm.WindowManagerDebugConfig.TAG_WITH_CLASS_NAME;
 import static com.android.server.wm.WindowManagerDebugConfig.TAG_WM;
@@ -706,7 +706,7 @@
                         mWindowManager.getDefaultDisplay().getRealSize(mTempPoint);
                         surfaceControl = mService.getDefaultDisplayContentLocked().makeOverlay()
                                 .setName(SURFACE_TITLE)
-                                .setSize(mTempPoint.x, mTempPoint.y) // not a typo
+                                .setBufferSize(mTempPoint.x, mTempPoint.y) // not a typo
                                 .setFormat(PixelFormat.TRANSLUCENT)
                                 .build();
                     } catch (OutOfResourcesException oore) {
@@ -784,7 +784,7 @@
                 public void updateSize() {
                     synchronized (mService.mGlobalLock) {
                         mWindowManager.getDefaultDisplay().getRealSize(mTempPoint);
-                        mSurfaceControl.setSize(mTempPoint.x, mTempPoint.y);
+                        mSurfaceControl.setBufferSize(mTempPoint.x, mTempPoint.y);
                         invalidate(mDirtyRect);
                     }
                 }
diff --git a/services/core/java/com/android/server/wm/AppWindowThumbnail.java b/services/core/java/com/android/server/wm/AppWindowThumbnail.java
index 729f89b..b9b9d31 100644
--- a/services/core/java/com/android/server/wm/AppWindowThumbnail.java
+++ b/services/core/java/com/android/server/wm/AppWindowThumbnail.java
@@ -16,13 +16,13 @@
 
 package com.android.server.wm;
 
+import static com.android.server.wm.AppWindowThumbnailProto.HEIGHT;
+import static com.android.server.wm.AppWindowThumbnailProto.SURFACE_ANIMATOR;
+import static com.android.server.wm.AppWindowThumbnailProto.WIDTH;
 import static com.android.server.wm.WindowManagerDebugConfig.SHOW_TRANSACTIONS;
 import static com.android.server.wm.WindowManagerDebugConfig.TAG_WITH_CLASS_NAME;
 import static com.android.server.wm.WindowManagerDebugConfig.TAG_WM;
 import static com.android.server.wm.WindowManagerService.MAX_ANIMATION_DURATION;
-import static com.android.server.wm.AppWindowThumbnailProto.HEIGHT;
-import static com.android.server.wm.AppWindowThumbnailProto.SURFACE_ANIMATOR;
-import static com.android.server.wm.AppWindowThumbnailProto.WIDTH;
 
 import android.graphics.GraphicBuffer;
 import android.graphics.PixelFormat;
@@ -65,7 +65,7 @@
         // this to the task.
         mSurfaceControl = appToken.makeSurface()
                 .setName("thumbnail anim: " + appToken.toString())
-                .setSize(mWidth, mHeight)
+                .setBufferSize(mWidth, mHeight)
                 .setFormat(PixelFormat.TRANSLUCENT)
                 .setMetadata(appToken.windowType,
                         window != null ? window.mOwnerUid : Binder.getCallingUid())
diff --git a/services/core/java/com/android/server/wm/AppWindowToken.java b/services/core/java/com/android/server/wm/AppWindowToken.java
index 6d402f2..1f86f12 100644
--- a/services/core/java/com/android/server/wm/AppWindowToken.java
+++ b/services/core/java/com/android/server/wm/AppWindowToken.java
@@ -1754,10 +1754,8 @@
         if (DEBUG_APP_TRANSITIONS || DEBUG_ANIM) Slog.i(TAG, "Creating animation bounds layer");
         final SurfaceControl.Builder builder = makeAnimationLeash()
                 .setParent(getAnimationLeashParent())
-                .setName(getSurfaceControl() + " - animation-bounds")
-                .setSize(getSurfaceWidth(), getSurfaceHeight());
+                .setName(getSurfaceControl() + " - animation-bounds");
         final SurfaceControl boundsLayer = builder.build();
-        t.setWindowCrop(boundsLayer, getSurfaceWidth(), getSurfaceHeight());
         t.show(boundsLayer);
         return boundsLayer;
     }
diff --git a/services/core/java/com/android/server/wm/BlackFrame.java b/services/core/java/com/android/server/wm/BlackFrame.java
index 9633864..c90f5bf 100644
--- a/services/core/java/com/android/server/wm/BlackFrame.java
+++ b/services/core/java/com/android/server/wm/BlackFrame.java
@@ -48,7 +48,6 @@
 
             surface = dc.makeOverlay()
                     .setName("BlackSurface")
-                    .setSize(w, h)
                     .setColorLayer(true)
                     .setParent(null) // TODO: Work-around for b/69259549
                     .build();
diff --git a/services/core/java/com/android/server/wm/CircularDisplayMask.java b/services/core/java/com/android/server/wm/CircularDisplayMask.java
index 2a216ab..c3d6211 100644
--- a/services/core/java/com/android/server/wm/CircularDisplayMask.java
+++ b/services/core/java/com/android/server/wm/CircularDisplayMask.java
@@ -69,7 +69,7 @@
         try {
             ctrl = dc.makeOverlay()
                     .setName("CircularDisplayMask")
-                    .setSize(mScreenSize.x, mScreenSize.y) // not a typo
+                    .setBufferSize(mScreenSize.x, mScreenSize.y) // not a typo
                     .setFormat(PixelFormat.TRANSLUCENT)
                     .build();
 
diff --git a/services/core/java/com/android/server/wm/Dimmer.java b/services/core/java/com/android/server/wm/Dimmer.java
index cc14afc..fa3c7ca 100644
--- a/services/core/java/com/android/server/wm/Dimmer.java
+++ b/services/core/java/com/android/server/wm/Dimmer.java
@@ -308,7 +308,6 @@
             return false;
         } else {
             // TODO: Once we use geometry from hierarchy this falls away.
-            t.setSize(mDimState.mDimLayer, bounds.width(), bounds.height());
             t.setPosition(mDimState.mDimLayer, bounds.left, bounds.top);
             t.setWindowCrop(mDimState.mDimLayer, bounds.width(), bounds.height());
             if (!mDimState.isVisible) {
diff --git a/services/core/java/com/android/server/wm/DisplayContent.java b/services/core/java/com/android/server/wm/DisplayContent.java
index 478340d..a834ef1 100644
--- a/services/core/java/com/android/server/wm/DisplayContent.java
+++ b/services/core/java/com/android/server/wm/DisplayContent.java
@@ -78,7 +78,6 @@
 import static com.android.server.wm.DisplayContentProto.ROTATION;
 import static com.android.server.wm.DisplayContentProto.SCREEN_ROTATION_ANIMATION;
 import static com.android.server.wm.DisplayContentProto.STACKS;
-import static com.android.server.wm.DisplayContentProto.SURFACE_SIZE;
 import static com.android.server.wm.DisplayContentProto.WINDOW_CONTAINER;
 import static com.android.server.wm.WindowManagerDebugConfig.DEBUG_ADD_REMOVE;
 import static com.android.server.wm.WindowManagerDebugConfig.DEBUG_APP_TRANSITIONS;
@@ -470,14 +469,6 @@
     private SurfaceControl mWindowingLayer;
 
     /**
-     * Specifies the size of the surfaces in {@link #mOverlayLayer} and {@link #mWindowingLayer}.
-     * <p>
-     * For these surfaces currently we use a surface based on the larger of width or height so we
-     * don't have to resize when rotating the display.
-     */
-    private int mSurfaceSize;
-
-    /**
      * Sequence number for the current layout pass.
      */
     int mLayoutSeq = 0;
@@ -884,18 +875,7 @@
         mDividerControllerLocked = new DockedStackDividerController(service, this);
         mPinnedStackControllerLocked = new PinnedStackController(service, this);
 
-        // We use this as our arbitrary surface size for buffer-less parents
-        // that don't impose cropping on their children. It may need to be larger
-        // than the display size because fullscreen windows can be shifted offscreen
-        // due to surfaceInsets. 2 times the largest display dimension feels like an
-        // appropriately arbitrary number. Eventually we would like to give SurfaceFlinger
-        // layers the ability to match their parent sizes and be able to skip
-        // such arbitrary size settings.
-        mSurfaceSize = Math.max(mBaseDisplayHeight, mBaseDisplayWidth) * 2;
-
-        final SurfaceControl.Builder b = mService.makeSurfaceBuilder(mSession)
-                .setSize(mSurfaceSize, mSurfaceSize)
-                .setOpaque(true);
+        final SurfaceControl.Builder b = mService.makeSurfaceBuilder(mSession).setOpaque(true);
         mWindowingLayer = b.setName("Display Root").build();
         mOverlayLayer = b.setName("Display Overlays").build();
 
@@ -2612,7 +2592,6 @@
         }
         mDisplayFrames.writeToProto(proto, DISPLAY_FRAMES);
         mAppTransition.writeToProto(proto, APP_TRANSITION);
-        proto.write(SURFACE_SIZE, mSurfaceSize);
         if (mFocusedApp != null) {
             mFocusedApp.writeNameToProto(proto, FOCUSED_APP);
         }
@@ -3537,10 +3516,6 @@
         }
     }
 
-    int getSurfaceSize() {
-        return mSurfaceSize;
-    }
-
     void performLayout(boolean initial, boolean updateInputWindows) {
         if (!isLayoutNeeded()) {
             return;
@@ -4483,8 +4458,6 @@
     SurfaceControl.Builder makeChildSurface(WindowContainer child) {
         SurfaceSession s = child != null ? child.getSession() : getSession();
         final SurfaceControl.Builder b = mService.makeSurfaceBuilder(s);
-        b.setSize(mSurfaceSize, mSurfaceSize);
-
         if (child == null) {
             return b;
         }
diff --git a/services/core/java/com/android/server/wm/DragState.java b/services/core/java/com/android/server/wm/DragState.java
index 9832df6..811b928 100644
--- a/services/core/java/com/android/server/wm/DragState.java
+++ b/services/core/java/com/android/server/wm/DragState.java
@@ -155,7 +155,7 @@
         if (mInputSurface == null) {
             mInputSurface = mService.makeSurfaceBuilder(mService.mRoot.getDisplayContent(displayId)
                     .getSession()).setContainerLayer(true)
-                    .setName("Drag and Drop Input Consumer").setSize(1, 1).build();
+                    .setName("Drag and Drop Input Consumer").build();
         }
         final InputWindowHandle h = getInputWindowHandle();
         if (h == null) {
diff --git a/services/core/java/com/android/server/wm/EmulatorDisplayOverlay.java b/services/core/java/com/android/server/wm/EmulatorDisplayOverlay.java
index fddf6ca..7cb4a43 100644
--- a/services/core/java/com/android/server/wm/EmulatorDisplayOverlay.java
+++ b/services/core/java/com/android/server/wm/EmulatorDisplayOverlay.java
@@ -16,7 +16,6 @@
 
 package com.android.server.wm;
 
-
 import static com.android.server.wm.WindowManagerDebugConfig.TAG_WITH_CLASS_NAME;
 import static com.android.server.wm.WindowManagerDebugConfig.TAG_WM;
 
@@ -32,7 +31,6 @@
 import android.view.Surface;
 import android.view.Surface.OutOfResourcesException;
 import android.view.SurfaceControl;
-import android.view.SurfaceSession;
 
 class EmulatorDisplayOverlay {
     private static final String TAG = TAG_WITH_CLASS_NAME ? "EmulatorDisplayOverlay" : TAG_WM;
@@ -59,7 +57,7 @@
         try {
             ctrl = dc.makeOverlay()
                     .setName("EmulatorDisplayOverlay")
-                    .setSize(mScreenSize.x, mScreenSize.y)
+                    .setBufferSize(mScreenSize.x, mScreenSize.y)
                     .setFormat(PixelFormat.TRANSLUCENT)
                     .build();
             ctrl.setLayer(zOrder);
diff --git a/services/core/java/com/android/server/wm/InputConsumerImpl.java b/services/core/java/com/android/server/wm/InputConsumerImpl.java
index 8140820..4df5a0b 100644
--- a/services/core/java/com/android/server/wm/InputConsumerImpl.java
+++ b/services/core/java/com/android/server/wm/InputConsumerImpl.java
@@ -90,7 +90,6 @@
 
         mInputSurface = mService.makeSurfaceBuilder(mService.mRoot.getDisplayContent(displayId)
                 .getSession()).setContainerLayer(true).setName("Input Consumer " + name)
-                .setSize(1, 1)
                 .build();
     }
 
diff --git a/services/core/java/com/android/server/wm/Letterbox.java b/services/core/java/com/android/server/wm/Letterbox.java
index b49d304..1a2aa2f 100644
--- a/services/core/java/com/android/server/wm/Letterbox.java
+++ b/services/core/java/com/android/server/wm/Letterbox.java
@@ -186,7 +186,6 @@
                     createSurface();
                 }
                 t.setPosition(mSurface, mSurfaceFrame.left, mSurfaceFrame.top);
-                t.setSize(mSurface, mSurfaceFrame.width(), mSurfaceFrame.height());
                 t.setWindowCrop(mSurface, mSurfaceFrame.width(), mSurfaceFrame.height());
                 t.show(mSurface);
             } else if (mSurface != null) {
diff --git a/services/core/java/com/android/server/wm/ScreenRotationAnimation.java b/services/core/java/com/android/server/wm/ScreenRotationAnimation.java
index df97027..ee0e89b 100644
--- a/services/core/java/com/android/server/wm/ScreenRotationAnimation.java
+++ b/services/core/java/com/android/server/wm/ScreenRotationAnimation.java
@@ -261,7 +261,7 @@
         try {
             mSurfaceControl = displayContent.makeOverlay()
                     .setName("ScreenshotSurface")
-                    .setSize(mWidth, mHeight)
+                    .setBufferSize(mWidth, mHeight)
                     .setSecure(isSecure)
                     .build();
 
diff --git a/services/core/java/com/android/server/wm/StrictModeFlash.java b/services/core/java/com/android/server/wm/StrictModeFlash.java
index e97b366..82f2ad8 100644
--- a/services/core/java/com/android/server/wm/StrictModeFlash.java
+++ b/services/core/java/com/android/server/wm/StrictModeFlash.java
@@ -16,7 +16,6 @@
 
 package com.android.server.wm;
 
-
 import static com.android.server.wm.WindowManagerDebugConfig.TAG_WITH_CLASS_NAME;
 import static com.android.server.wm.WindowManagerDebugConfig.TAG_WM;
 
@@ -24,12 +23,9 @@
 import android.graphics.Color;
 import android.graphics.PixelFormat;
 import android.graphics.Rect;
-import android.graphics.Region;
-import android.view.Display;
-import android.view.Surface.OutOfResourcesException;
 import android.view.Surface;
+import android.view.Surface.OutOfResourcesException;
 import android.view.SurfaceControl;
-import android.view.SurfaceSession;
 
 class StrictModeFlash {
     private static final String TAG = TAG_WITH_CLASS_NAME ? "StrictModeFlash" : TAG_WM;
@@ -46,7 +42,7 @@
         try {
             ctrl = dc.makeOverlay()
                     .setName("StrictModeFlash")
-                    .setSize(1, 1)
+                    .setBufferSize(1, 1)
                     .setFormat(PixelFormat.TRANSLUCENT)
                     .build();
             ctrl.setLayer(WindowManagerService.TYPE_LAYER_MULTIPLIER * 101);  // one more than Watermark? arbitrary.
@@ -122,7 +118,7 @@
         }
         mLastDW = dw;
         mLastDH = dh;
-        mSurfaceControl.setSize(dw, dh);
+        mSurfaceControl.setBufferSize(dw, dh);
         mDrawNeeded = true;
     }
 
diff --git a/services/core/java/com/android/server/wm/SurfaceAnimator.java b/services/core/java/com/android/server/wm/SurfaceAnimator.java
index 31c0c7f..11068ce 100644
--- a/services/core/java/com/android/server/wm/SurfaceAnimator.java
+++ b/services/core/java/com/android/server/wm/SurfaceAnimator.java
@@ -302,8 +302,7 @@
         if (DEBUG_ANIM) Slog.i(TAG, "Reparenting to leash");
         final SurfaceControl.Builder builder = mAnimatable.makeAnimationLeash()
                 .setParent(mAnimatable.getAnimationLeashParent())
-                .setName(surface + " - animation-leash")
-                .setSize(width, height);
+                .setName(surface + " - animation-leash");
         final SurfaceControl leash = builder.build();
         t.setWindowCrop(leash, width, height);
         if (!hidden) {
diff --git a/services/core/java/com/android/server/wm/Task.java b/services/core/java/com/android/server/wm/Task.java
index c9800f8..6904ef5 100644
--- a/services/core/java/com/android/server/wm/Task.java
+++ b/services/core/java/com/android/server/wm/Task.java
@@ -302,7 +302,6 @@
 
     @Override
     void onDisplayChanged(DisplayContent dc) {
-        updateSurfaceSize(dc);
         adjustBoundsForDisplayChangeIfNeeded(dc);
         super.onDisplayChanged(dc);
     }
diff --git a/services/core/java/com/android/server/wm/TaskPositioningController.java b/services/core/java/com/android/server/wm/TaskPositioningController.java
index 28bc039..5a70325 100644
--- a/services/core/java/com/android/server/wm/TaskPositioningController.java
+++ b/services/core/java/com/android/server/wm/TaskPositioningController.java
@@ -82,7 +82,7 @@
         if (mInputSurface == null) {
             mInputSurface = mService.makeSurfaceBuilder(dc.getSession())
                     .setContainerLayer(true)
-                    .setName("Drag and Drop Input Consumer").setSize(1, 1).build();
+                    .setName("Drag and Drop Input Consumer").build();
         }
 
         final InputWindowHandle h = getDragWindowHandleLocked();
diff --git a/services/core/java/com/android/server/wm/TaskSnapshotSurface.java b/services/core/java/com/android/server/wm/TaskSnapshotSurface.java
index a7b0272..8f02f8a 100644
--- a/services/core/java/com/android/server/wm/TaskSnapshotSurface.java
+++ b/services/core/java/com/android/server/wm/TaskSnapshotSurface.java
@@ -32,6 +32,7 @@
 import static android.view.WindowManager.LayoutParams.FLAG_WATCH_OUTSIDE_TOUCH;
 import static android.view.WindowManager.LayoutParams.PRIVATE_FLAG_FORCE_DRAW_STATUS_BAR_BACKGROUND;
 import static android.view.WindowManager.LayoutParams.TYPE_APPLICATION_STARTING;
+
 import static com.android.internal.policy.DecorView.NAVIGATION_BAR_COLOR_VIEW_ATTRIBUTES;
 import static com.android.internal.policy.DecorView.STATUS_BAR_COLOR_VIEW_ATTRIBUTES;
 import static com.android.internal.policy.DecorView.getColorViewLeftInset;
@@ -312,7 +313,7 @@
         // Keep a reference to it such that it doesn't get destroyed when finalized.
         mChildSurfaceControl = new SurfaceControl.Builder(session)
                 .setName(mTitle + " - task-snapshot-surface")
-                .setSize(buffer.getWidth(), buffer.getHeight())
+                .setBufferSize(buffer.getWidth(), buffer.getHeight())
                 .setFormat(buffer.getFormat())
                 .build();
         Surface surface = new Surface();
diff --git a/services/core/java/com/android/server/wm/TaskStack.java b/services/core/java/com/android/server/wm/TaskStack.java
index 64f4ba5..5deb4f1 100644
--- a/services/core/java/com/android/server/wm/TaskStack.java
+++ b/services/core/java/com/android/server/wm/TaskStack.java
@@ -248,7 +248,6 @@
         getRawBounds(mTmpRect);
         final Rect stackBounds = getBounds();
         getPendingTransaction()
-                .setSize(mAnimationBackgroundSurface, mTmpRect.width(), mTmpRect.height())
                 .setWindowCrop(mAnimationBackgroundSurface, mTmpRect.width(), mTmpRect.height())
                 .setPosition(mAnimationBackgroundSurface, mTmpRect.left - stackBounds.left,
                         mTmpRect.top - stackBounds.top);
@@ -751,7 +750,6 @@
         if (width == mLastSurfaceSize.x && height == mLastSurfaceSize.y) {
             return;
         }
-        transaction.setSize(mSurfaceControl, width, height);
         transaction.setWindowCrop(mSurfaceControl, width, height);
         mLastSurfaceSize.set(width, height);
     }
diff --git a/services/core/java/com/android/server/wm/Watermark.java b/services/core/java/com/android/server/wm/Watermark.java
index 9216b66..e6ac059 100644
--- a/services/core/java/com/android/server/wm/Watermark.java
+++ b/services/core/java/com/android/server/wm/Watermark.java
@@ -20,19 +20,18 @@
 
 import android.graphics.Canvas;
 import android.graphics.Paint;
+import android.graphics.Paint.FontMetricsInt;
 import android.graphics.PixelFormat;
 import android.graphics.PorterDuff;
 import android.graphics.Rect;
 import android.graphics.Typeface;
-import android.graphics.Paint.FontMetricsInt;
 import android.util.DisplayMetrics;
 import android.util.Log;
 import android.util.TypedValue;
 import android.view.Display;
-import android.view.Surface.OutOfResourcesException;
 import android.view.Surface;
+import android.view.Surface.OutOfResourcesException;
 import android.view.SurfaceControl;
-import android.view.SurfaceSession;
 
 /**
  * Displays a watermark on top of the window manager's windows.
@@ -116,7 +115,7 @@
         try {
             ctrl = dc.makeOverlay()
                     .setName("WatermarkSurface")
-                    .setSize(1, 1)
+                    .setBufferSize(1, 1)
                     .setFormat(PixelFormat.TRANSLUCENT)
                     .build();
             ctrl.setLayerStack(mDisplay.getLayerStack());
@@ -133,7 +132,7 @@
         if (mLastDW != dw || mLastDH != dh) {
             mLastDW = dw;
             mLastDH = dh;
-            mSurfaceControl.setSize(dw, dh);
+            mSurfaceControl.setBufferSize(dw, dh);
             mDrawNeeded = true;
         }
     }
diff --git a/services/core/java/com/android/server/wm/WindowContainer.java b/services/core/java/com/android/server/wm/WindowContainer.java
index 266006d..7e4c629 100644
--- a/services/core/java/com/android/server/wm/WindowContainer.java
+++ b/services/core/java/com/android/server/wm/WindowContainer.java
@@ -515,24 +515,6 @@
         }
     }
 
-    /**
-     * Update the surface size when display changed in order to avoid children being bound by the
-     * old display size.
-     *
-     * Note that we don't want to apply this to all layers, but only limiting this to layers that
-     * don't set their own size ({@link Task}, {@link WindowState} and {@link WindowToken}).
-     */
-    void updateSurfaceSize(DisplayContent dc) {
-        if (mSurfaceControl == null) {
-            return;
-        }
-
-        final int newSurfaceSize = dc.getSurfaceSize();
-        if (mSurfaceControl.getWidth() != newSurfaceSize) {
-            getPendingTransaction().setSize(mSurfaceControl, newSurfaceSize, newSurfaceSize);
-        }
-    }
-
     void setWaitingForDrawnIfResizingChanged() {
         for (int i = mChildren.size() - 1; i >= 0; --i) {
             final WindowContainer wc = mChildren.get(i);
diff --git a/services/core/java/com/android/server/wm/WindowState.java b/services/core/java/com/android/server/wm/WindowState.java
index 9efaefe..91c3288 100644
--- a/services/core/java/com/android/server/wm/WindowState.java
+++ b/services/core/java/com/android/server/wm/WindowState.java
@@ -1261,7 +1261,6 @@
 
     @Override
     void onDisplayChanged(DisplayContent dc) {
-        updateSurfaceSize(dc);
         super.onDisplayChanged(dc);
         // Window was not laid out for this display yet, so make sure mLayoutSeq does not match.
         if (dc != null) {
diff --git a/services/core/java/com/android/server/wm/WindowStateAnimator.java b/services/core/java/com/android/server/wm/WindowStateAnimator.java
index e090cc5..78a3fe5 100644
--- a/services/core/java/com/android/server/wm/WindowStateAnimator.java
+++ b/services/core/java/com/android/server/wm/WindowStateAnimator.java
@@ -861,7 +861,7 @@
         // to find the surface size changed underneath it.
         final boolean relayout = !w.mRelayoutCalled || w.mInRelayout;
         if (relayout) {
-            mSurfaceResized = mSurfaceController.setSizeInTransaction(
+            mSurfaceResized = mSurfaceController.setBufferSizeInTransaction(
                     mTmpSize.width(), mTmpSize.height(), recoveringMemory);
         } else {
             mSurfaceResized = false;
diff --git a/services/core/java/com/android/server/wm/WindowSurfaceController.java b/services/core/java/com/android/server/wm/WindowSurfaceController.java
index 6821e94..ce627e2 100644
--- a/services/core/java/com/android/server/wm/WindowSurfaceController.java
+++ b/services/core/java/com/android/server/wm/WindowSurfaceController.java
@@ -19,34 +19,28 @@
 import static android.os.Trace.TRACE_TAG_WINDOW_MANAGER;
 import static android.view.Surface.SCALING_MODE_SCALE_TO_WINDOW;
 
+import static com.android.server.wm.WindowManagerDebugConfig.DEBUG_VISIBILITY;
+import static com.android.server.wm.WindowManagerDebugConfig.SHOW_LIGHT_TRANSACTIONS;
 import static com.android.server.wm.WindowManagerDebugConfig.SHOW_SURFACE_ALLOC;
 import static com.android.server.wm.WindowManagerDebugConfig.SHOW_TRANSACTIONS;
-import static com.android.server.wm.WindowManagerDebugConfig.SHOW_LIGHT_TRANSACTIONS;
-import static com.android.server.wm.WindowManagerDebugConfig.DEBUG_VISIBILITY;
 import static com.android.server.wm.WindowManagerDebugConfig.TAG_WITH_CLASS_NAME;
 import static com.android.server.wm.WindowManagerDebugConfig.TAG_WM;
 import static com.android.server.wm.WindowSurfaceControllerProto.LAYER;
 import static com.android.server.wm.WindowSurfaceControllerProto.SHOWN;
 
-import android.graphics.Point;
-import android.graphics.PointF;
 import android.graphics.Rect;
 import android.graphics.Region;
-import android.os.IBinder;
 import android.os.Debug;
+import android.os.IBinder;
 import android.os.Trace;
+import android.util.Slog;
 import android.util.proto.ProtoOutputStream;
 import android.view.Surface;
 import android.view.SurfaceControl;
 import android.view.SurfaceSession;
 import android.view.WindowContentFrameStats;
-import android.view.Surface.OutOfResourcesException;
 
-import android.util.Slog;
-
-import java.io.FileDescriptor;
 import java.io.PrintWriter;
-import java.util.ArrayList;
 
 class WindowSurfaceController {
     static final String TAG = TAG_WITH_CLASS_NAME ? "WindowSurfaceController" : TAG_WM;
@@ -106,7 +100,7 @@
         final SurfaceControl.Builder b = win.makeSurface()
                 .setParent(win.getSurfaceControl())
                 .setName(name)
-                .setSize(w, h)
+                .setBufferSize(w, h)
                 .setFormat(format)
                 .setFlags(flags)
                 .setMetadata(windowType, ownerUid);
@@ -303,7 +297,7 @@
         }
     }
 
-    boolean setSizeInTransaction(int width, int height, boolean recoveringMemory) {
+    boolean setBufferSizeInTransaction(int width, int height, boolean recoveringMemory) {
         final boolean surfaceResized = mSurfaceW != width || mSurfaceH != height;
         if (surfaceResized) {
             mSurfaceW = width;
@@ -312,7 +306,7 @@
             try {
                 if (SHOW_TRANSACTIONS) logSurface(
                         "SIZE " + width + "x" + height, null);
-                mSurfaceControl.setSize(width, height);
+                mSurfaceControl.setBufferSize(width, height);
             } catch (RuntimeException e) {
                 // If something goes wrong with the surface (such
                 // as running out of memory), don't take down the
diff --git a/services/core/java/com/android/server/wm/WindowToken.java b/services/core/java/com/android/server/wm/WindowToken.java
index 0cf79b6..d8242f8 100644
--- a/services/core/java/com/android/server/wm/WindowToken.java
+++ b/services/core/java/com/android/server/wm/WindowToken.java
@@ -265,7 +265,6 @@
         // to another display before the window behind
         // it is ready.
 
-        updateSurfaceSize(dc);
         super.onDisplayChanged(dc);
     }
 
diff --git a/services/tests/servicestests/src/com/android/server/wm/DimmerTests.java b/services/tests/servicestests/src/com/android/server/wm/DimmerTests.java
index 991981f..a6415d1 100644
--- a/services/tests/servicestests/src/com/android/server/wm/DimmerTests.java
+++ b/services/tests/servicestests/src/com/android/server/wm/DimmerTests.java
@@ -145,7 +145,7 @@
     }
 
     @Test
-    public void testUpdateDimsAppliesSize() {
+    public void testUpdateDimsAppliesCrop() {
         mDimmer.dimAbove(mTransaction, 0.8f);
 
         int width = 100;
@@ -153,7 +153,7 @@
         Rect bounds = new Rect(0, 0, width, height);
         mDimmer.updateDims(mTransaction, bounds);
 
-        verify(mTransaction).setSize(getDimLayer(), width, height);
+        verify(mTransaction).setWindowCrop(getDimLayer(), width, height);
         verify(mTransaction).show(getDimLayer());
     }
 
@@ -242,13 +242,13 @@
         SurfaceControl dimLayer = getDimLayer();
         bounds.set(0, 0, 10, 10);
         mDimmer.updateDims(mTransaction, bounds);
+        verify(mTransaction).setWindowCrop(dimLayer, bounds.width(), bounds.height());
         verify(mTransaction, times(1)).show(dimLayer);
-        verify(mTransaction).setSize(dimLayer, bounds.width(), bounds.height());
         verify(mTransaction).setPosition(dimLayer, 0, 0);
 
         bounds.set(10, 10, 30, 30);
         mDimmer.updateDims(mTransaction, bounds);
-        verify(mTransaction).setSize(dimLayer, bounds.width(), bounds.height());
+        verify(mTransaction).setWindowCrop(dimLayer, bounds.width(), bounds.height());
         verify(mTransaction).setPosition(dimLayer, 10, 10);
     }
 
diff --git a/services/tests/servicestests/src/com/android/server/wm/DragDropControllerTests.java b/services/tests/servicestests/src/com/android/server/wm/DragDropControllerTests.java
index 55e766d..ad293d9 100644
--- a/services/tests/servicestests/src/com/android/server/wm/DragDropControllerTests.java
+++ b/services/tests/servicestests/src/com/android/server/wm/DragDropControllerTests.java
@@ -171,7 +171,7 @@
         try {
             final SurfaceControl surface = new SurfaceControl.Builder(appSession)
                     .setName("drag surface")
-                    .setSize(100, 100)
+                    .setBufferSize(100, 100)
                     .setFormat(PixelFormat.TRANSLUCENT)
                     .build();
 
diff --git a/services/tests/servicestests/src/com/android/server/wm/SurfaceAnimatorTest.java b/services/tests/servicestests/src/com/android/server/wm/SurfaceAnimatorTest.java
index 6833dc5..e638a6a 100644
--- a/services/tests/servicestests/src/com/android/server/wm/SurfaceAnimatorTest.java
+++ b/services/tests/servicestests/src/com/android/server/wm/SurfaceAnimatorTest.java
@@ -225,11 +225,9 @@
             mTransaction = transaction;
             mParent = wm.makeSurfaceBuilder(mSession)
                     .setName("test surface parent")
-                    .setSize(3000, 3000)
                     .build();
             mSurface = wm.makeSurfaceBuilder(mSession)
                     .setName("test surface")
-                    .setSize(1, 1)
                     .build();
             mFinishedCallbackCalled = false;
             mLeash = null;