Merge "DimLayer: More release fixes." into qt-dev
diff --git a/services/core/java/com/android/server/wm/Dimmer.java b/services/core/java/com/android/server/wm/Dimmer.java
index a7a793f..767327a 100644
--- a/services/core/java/com/android/server/wm/Dimmer.java
+++ b/services/core/java/com/android/server/wm/Dimmer.java
@@ -102,7 +102,9 @@
         }
 
         void removeSurface() {
-            getPendingTransaction().remove(mDimLayer);
+            if (mDimLayer != null && mDimLayer.isValid()) {
+                getPendingTransaction().remove(mDimLayer);
+            }
             mDimLayer = null;
         }
     }
@@ -305,7 +307,9 @@
 
         if (!mDimState.mDimming) {
             if (!mDimState.mAnimateExit) {
-                t.remove(mDimState.mDimLayer);
+                if (mDimState.mDimLayer.isValid()) {
+                    t.remove(mDimState.mDimLayer);
+                }
             } else {
                 startDimExit(mLastRequestedDimContainer, mDimState.mSurfaceAnimator, t);
             }
diff --git a/services/tests/wmtests/src/com/android/server/wm/DimmerTests.java b/services/tests/wmtests/src/com/android/server/wm/DimmerTests.java
index 5b32fe6..292a05b 100644
--- a/services/tests/wmtests/src/com/android/server/wm/DimmerTests.java
+++ b/services/tests/wmtests/src/com/android/server/wm/DimmerTests.java
@@ -27,6 +27,7 @@
 import static org.junit.Assert.assertNotNull;
 import static org.mockito.ArgumentMatchers.any;
 import static org.mockito.ArgumentMatchers.anyBoolean;
+import static org.mockito.Mockito.when;
 
 import android.graphics.Rect;
 import android.platform.test.annotations.Presubmit;
@@ -78,7 +79,9 @@
 
             @Override
             public SurfaceControl build() {
-                return mock(SurfaceControl.class);
+                SurfaceControl mSc = mock(SurfaceControl.class);
+                when(mSc.isValid()).thenReturn(true);
+                return mSc;
             }
         }