Merge "Wallpaper: Propagate transform hint from WM to BBQ surface" into sc-dev am: 2dfdf43732 am: 8ad4528fa2

Original change: https://googleplex-android-review.googlesource.com/c/platform/frameworks/base/+/15372415

Change-Id: Id7391dbc6ce47e2311f062402f74ed4a9c49083a

core/java/android/service/wallpaper/WallpaperService.java

@@ -1033,6 +1033,9 @@ public abstract class WallpaperService extends Service {
                                     .build();
                             updateSurfaceDimming();
                         }
+                        // Propagate transform hint from WM so we can use the right hint for the
+                        // first frame.
+                        mBbqSurfaceControl.setTransformHint(mSurfaceControl.getTransformHint());
                         Surface blastSurface = getOrCreateBLASTSurface(mSurfaceSize.x,
                                 mSurfaceSize.y, mFormat);
                         // If blastSurface == null that means it hasn't changed since the last