Fix missing callback in fallback activity to re-enable high res loader.

Bug: 111515602
Change-Id: Ie4a9e709392ef9dad001651129a46d4caee0c2ae

quickstep/src/com/android/quickstep/RecentsActivity.java

@@ -240,6 +240,12 @@ public class RecentsActivity extends BaseDraggingActivity {
         onTrimMemory(TRIM_MEMORY_UI_HIDDEN);
     }
 
+    @Override
+    public void onEnterAnimationComplete() {
+        super.onEnterAnimationComplete();
+        UiFactory.onEnterAnimationComplete(this);
+    }
+
     @Override
     public void onTrimMemory(int level) {
         super.onTrimMemory(level);