Revert change "Change Rounded corner overlay to be in Overlay layer"

Revert CL ag/18494304

Reason: Memory regression on certain devices (b/235601833)
Bug: 235601833
Bug: 225505986
Test: manual
Merged-In: Iddc0f36739ec1579e31edec314e9509c3c70edfb
Change-Id: Iddc0f36739ec1579e31edec314e9509c3c70edfb
(cherry picked from commit f62e001347)

services/core/java/com/android/server/input/GestureMonitorSpyWindow.java

@@ -27,8 +27,6 @@ import android.view.InputWindowHandle;
 import android.view.SurfaceControl;
 import android.view.WindowManager;
 
-import com.android.server.policy.WindowManagerPolicy;
-
 /**
  * An internal implementation of an {@link InputMonitor} that uses a spy window.
  *
@@ -69,9 +67,7 @@ class GestureMonitorSpyWindow {
 
         final SurfaceControl.Transaction t = new SurfaceControl.Transaction();
         t.setInputWindowInfo(mInputSurface, mWindowHandle);
-        // Gesture monitor should be above handwriting event surface, hence setting it to
+        t.setLayer(mInputSurface, Integer.MAX_VALUE);
-        // WindowManagerPolicy.INPUT_DISPLAY_OVERLAY_LAYER + 1
-        t.setLayer(mInputSurface, WindowManagerPolicy.INPUT_DISPLAY_OVERLAY_LAYER + 1);
         t.setPosition(mInputSurface, 0, 0);
         t.setCrop(mInputSurface, null /* crop to parent surface */);
         t.show(mInputSurface);

services/core/java/com/android/server/inputmethod/HandwritingEventReceiverSurface.java

@@ -27,8 +27,6 @@ import android.view.InputWindowHandle;
 import android.view.SurfaceControl;
 import android.view.WindowManager;
 
-import com.android.server.policy.WindowManagerPolicy;
-
 final class HandwritingEventReceiverSurface {
 
     public static final String TAG = HandwritingEventReceiverSurface.class.getSimpleName();
@@ -38,8 +36,7 @@ final class HandwritingEventReceiverSurface {
     // is above gesture monitors, then edge-back and swipe-up gestures won't work when this surface
     // is intercepting.
     // TODO(b/217538817): Specify the ordering in WM by usage.
-    private static final int HANDWRITING_SURFACE_LAYER =
+    private static final int HANDWRITING_SURFACE_LAYER = Integer.MAX_VALUE - 1;
-            WindowManagerPolicy.INPUT_DISPLAY_OVERLAY_LAYER;
 
     private final InputWindowHandle mWindowHandle;
     private final InputChannel mClientChannel;

services/core/java/com/android/server/policy/WindowManagerPolicy.java

@@ -156,10 +156,6 @@ public interface WindowManagerPolicy extends WindowManagerPolicyConstants {
     int FINISH_LAYOUT_REDO_ANIM = 0x0008;
     /** Layer for the screen off animation */
     int COLOR_FADE_LAYER = 0x40000001;
-    /** Layer for Input overlays for capturing inputs for gesture detection, etc. */
-    int INPUT_DISPLAY_OVERLAY_LAYER = 0x7f000000;
-    /** Layer for Screen Decoration: The top most visible layer just below input overlay layers */
-    int SCREEN_DECOR_DISPLAY_OVERLAY_LAYER = INPUT_DISPLAY_OVERLAY_LAYER - 1;
 
     /**
      * Register shortcuts for window manager to dispatch.

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

@@ -265,7 +265,7 @@ final class InputManagerCallback implements InputManagerService.WindowManagerCal
                     .setContainerLayer()
                     .setName(name)
                     .setCallsite("createSurfaceForGestureMonitor")
-                    .setParent(dc.getOverlayLayer())
+                    .setParent(dc.getSurfaceControl())
                     .build();
         }
     }

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

@@ -173,11 +173,6 @@ class ScreenRotationAnimation {
 
             if (isSizeChanged) {
                 mRoundedCornerOverlay = displayContent.findRoundedCornerOverlays();
-            } else {
-                // Exclude rounded corner overlay from screenshot buffer. Rounded
-                // corner overlay windows are un-rotated during rotation animation
-                // for a seamless transition.
-                builder.setExcludeLayers(displayContent.findRoundedCornerOverlays());
             }
 
             SurfaceControl.ScreenshotHardwareBuffer screenshotBuffer =

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

@@ -8215,7 +8215,7 @@ public class WindowManagerService extends IWindowManager.Stub
                         .setContainerLayer()
                         .setName("IME Handwriting Surface")
                         .setCallsite("getHandwritingSurfaceForDisplay")
-                        .setParent(dc.getOverlayLayer())
+                        .setParent(dc.getSurfaceControl())
                         .build();
             }
         }

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

@@ -368,7 +368,7 @@ class WindowToken extends WindowContainer<WindowState> {
             super.assignRelativeLayer(t,
                     mDisplayContent.getDefaultTaskDisplayArea().getSplitScreenDividerAnchor(), 1);
         } else if (mRoundedCornerOverlay) {
-            super.assignLayer(t, WindowManagerPolicy.SCREEN_DECOR_DISPLAY_OVERLAY_LAYER);
+            super.assignLayer(t, WindowManagerPolicy.COLOR_FADE_LAYER + 1);
         } else {
             super.assignLayer(t, layer);
         }
@@ -378,7 +378,7 @@ class WindowToken extends WindowContainer<WindowState> {
     SurfaceControl.Builder makeSurface() {
         final SurfaceControl.Builder builder = super.makeSurface();
         if (mRoundedCornerOverlay) {
-            builder.setParent(getDisplayContent().getOverlayLayer());
+            builder.setParent(null);
         }
         return builder;
     }