Implement scrim method

am: 904c429b99

Change-Id: Iaae6e7b7b17ba9456db12af206e09f30692b9486

go/quickstep/src/com/android/quickstep/TouchInteractionService.java

@@ -92,6 +92,11 @@ public class TouchInteractionService extends Service {
             // To be implemented
         }
 
+        @Override
+        public void onScrimColorsChanged(int color, int type) {
+
+        }
+
         /** Deprecated methods **/
         public void onQuickStep(MotionEvent motionEvent) { }
 

quickstep/recents_ui_overrides/src/com/android/quickstep/TouchInteractionService.java

@@ -171,6 +171,11 @@ public class TouchInteractionService extends Service implements
             mSystemUiStateFlags = stateFlags;
         }
 
+        @Override
+        public void onScrimColorsChanged(int color, int type) {
+
+        }
+
         /** Deprecated methods **/
         public void onQuickStep(MotionEvent motionEvent) { }