Cancel layer update when a layer is about to be destroyed
Bug #9310706

Change-Id: I73eea6314c326f15a979617e3a05b525935f0d3f
diff --git a/libs/hwui/OpenGLRenderer.cpp b/libs/hwui/OpenGLRenderer.cpp
index 05f43a9..a704b3d 100644
--- a/libs/hwui/OpenGLRenderer.cpp
+++ b/libs/hwui/OpenGLRenderer.cpp
@@ -655,6 +655,18 @@
     }
 }
 
+void OpenGLRenderer::cancelLayerUpdate(Layer* layer) {
+    if (layer) {
+        for (int i = mLayerUpdates.size() - 1; i >= 0; i--) {
+            if (mLayerUpdates.itemAt(i) == layer) {
+                mLayerUpdates.removeAt(i);
+                mCaches.resourceCache.decrementRefcount(layer);
+                break;
+            }
+        }
+    }
+}
+
 void OpenGLRenderer::clearLayerUpdates() {
     size_t count = mLayerUpdates.size();
     if (count > 0) {