Pinned stack animation: Prevent window preservation during animation.

When moving to the fullscreen stack, we were triggering the
resized while not drag resizing logic, causing a window preservation
in the middle of the animation.

Bug: 35396882
Test: Move skeleton pinned app between states. Verify no freezes or size jumps during animation.
Change-Id: I4a72945742241b3a039b997a8da6aba89e935346

services/core/java/com/android/server/wm/TaskStack.java

@@ -1483,7 +1483,7 @@ public class TaskStack extends WindowContainer<Task> implements DimLayer.DimLaye
         return StackId.hasMovementAnimations(mStackId);
     }
 
-    public boolean getForceScaleToStack() {
+    public boolean isForceScaled() {
         return mBoundsAnimating;
     }
 

services/core/java/com/android/server/wm/WindowState.java

@@ -1581,7 +1581,7 @@ class WindowState extends WindowContainer<WindowState> implements WindowManagerP
             // Anyway we don't need to synchronize position and content updates for these
             // windows since they aren't at the base layer and could be moved around anyway.
             if (!computeDragResizing() && mAttrs.type == TYPE_BASE_APPLICATION &&
-                    !getTask().mStack.getBoundsAnimating() && !isGoneForLayoutLw() &&
+                    !mWinAnimator.isForceScaled() && !isGoneForLayoutLw() &&
                     !getTask().inPinnedWorkspace()) {
                 setResizedWhileNotDragResizing(true);
             }

services/core/java/com/android/server/wm/WindowStateAnimator.java

@@ -1318,7 +1318,7 @@ class WindowStateAnimator {
         float surfaceWidth = mSurfaceController.getWidth();
         float surfaceHeight = mSurfaceController.getHeight();
 
-        if ((task != null && task.mStack.getForceScaleToStack()) || mForceScaleUntilResize) {
+        if (isForceScaled()) {
             int hInsets = w.getAttrs().surfaceInsets.left + w.getAttrs().surfaceInsets.right;
             int vInsets = w.getAttrs().surfaceInsets.top + w.getAttrs().surfaceInsets.bottom;
             if (!mForceScaleUntilResize) {
@@ -1953,4 +1953,16 @@ class WindowStateAnimator {
             }
         }
     }
+
+    /** The force-scaled state for a given window can persist past
+     * the state for it's stack as the windows complete resizing
+     * independently of one another.
+     */
+    boolean isForceScaled() {
+        final Task task = mWin.getTask();
+        if (task != null && task.mStack.isForceScaled()) {
+            return true;
+        }
+        return mForceScaleUntilResize;
+    }
 }