Merge "Don't send mSizeCompatScale to client if it is from SizeCompatBounds" into tm-qpr-dev am: d76c6279e1

Original change: https://googleplex-android-review.googlesource.com/c/platform/frameworks/base/+/20419089

Change-Id: If243c31b640a63b8fa92f1f17115994adc9eb5c7
Signed-off-by: Automerger Merge Worker <android-build-automerger-merge-worker@system.gserviceaccount.com>

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

@@ -1883,7 +1883,7 @@ public class WindowManagerService extends IWindowManager.Stub
                 // Make this invalid which indicates a null attached frame.
                 outAttachedFrame.set(0, 0, -1, -1);
             }
-            outSizeCompatScale[0] = win.getSizeCompatScale();
+            outSizeCompatScale[0] = win.getSizeCompatScaleForClient();
         }
 
         Binder.restoreCallingIdentity(origId);

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

@@ -1265,8 +1265,10 @@ class WindowState extends WindowContainer<WindowState> implements WindowManagerP
         mGlobalScale = mInvGlobalScale = mSizeCompatScale = 1f;
     }
 
-    float getSizeCompatScale() {
-        return mSizeCompatScale;
+    float getSizeCompatScaleForClient() {
+        // If the size compat scale is because of the size compat bounds, we only scale down its
+        // coordinates at the server side without letting the client know.
+        return mToken.hasSizeCompatBounds() ? 1f : mSizeCompatScale;
     }
 
     /**
@@ -3863,7 +3865,8 @@ class WindowState extends WindowContainer<WindowState> implements WindowManagerP
                 outFrames.attachedFrame.scale(mInvGlobalScale);
             }
         }
-        outFrames.sizeCompatScale = mSizeCompatScale;
+
+        outFrames.sizeCompatScale = getSizeCompatScaleForClient();
 
         // Note: in the cases where the window is tied to an activity, we should not send a
         // configuration update when the window has requested to be hidden. Doing so can lead to