Send source rect hint to Shell via stopSwipePipToHome

Launcher has calculated it, so shell side can use it directly to
avoid inconsistency.

Bug: 331315278
Test: Assume the target app support auto-pip and it doesn't draw
      under display cutout.
      E.g. LAYOUT_IN_DISPLAY_CUTOUT_MODE_SHORT_EDGES
      Enter PiP from 90 degrees to home with 0 degrees.
      The left side of pip should not flicker.
Change-Id: Id09efc8a30eeef14a031d9db2ab1e00b6f3034bc

quickstep/src/com/android/quickstep/AbsSwipeUpHandler.java

@@ -1614,7 +1614,8 @@ public abstract class AbsSwipeUpHandler<T extends RecentsViewContainer,
                         mSwipePipToHomeAnimator.getComponentName(),
                         mSwipePipToHomeAnimator.getDestinationBounds(),
                         mSwipePipToHomeAnimator.getContentOverlay(),
-                        mSwipePipToHomeAnimator.getAppBounds());
+                        mSwipePipToHomeAnimator.getAppBounds(),
+                        mSwipePipToHomeAnimator.getSourceRectHint());
 
                 windowAnim = mSwipePipToHomeAnimators;
             } else {

quickstep/src/com/android/quickstep/SystemUiProxy.java

@@ -683,11 +683,11 @@ public class SystemUiProxy implements ISystemUiProxy, NavHandle, SafeCloseable {
      * should be responsible for cleaning up the overlay.
      */
     public void stopSwipePipToHome(int taskId, ComponentName componentName, Rect destinationBounds,
-            SurfaceControl overlay, Rect appBounds) {
+            SurfaceControl overlay, Rect appBounds, Rect sourceRectHint) {
         if (mPip != null) {
             try {
                 mPip.stopSwipePipToHome(taskId, componentName, destinationBounds, overlay,
-                        appBounds);
+                        appBounds, sourceRectHint);
             } catch (RemoteException e) {
                 Log.w(TAG, "Failed call stopSwipePipToHome");
             }

quickstep/src/com/android/quickstep/util/SwipePipToHomeAnimator.java

@@ -272,6 +272,10 @@ public class SwipePipToHomeAnimator extends RectFSpringAnim {
         return mAppBounds;
     }
 
+    public Rect getSourceRectHint() {
+        return mSourceRectHint;
+    }
+
     @Nullable
     public SurfaceControl getContentOverlay() {
         return mPipContentOverlay == null ? null : mPipContentOverlay.getLeash();