diff --git a/core/java/android/view/ThreadedRenderer.java b/core/java/android/view/ThreadedRenderer.java
index e129a06..2e0729b 100644
--- a/core/java/android/view/ThreadedRenderer.java
+++ b/core/java/android/view/ThreadedRenderer.java
@@ -520,16 +520,6 @@
     }
 
     /**
-     * This method should be invoked whenever the current hardware renderer
-     * context should be reset.
-     *
-     * @param surface The surface to hardware accelerate
-     */
-    void invalidate(Surface surface) {
-        updateSurface(surface);
-    }
-
-    /**
      * Detaches the layer's surface texture from the GL context and releases
      * the texture id
      */
diff --git a/libs/hwui/renderthread/RenderProxy.cpp b/libs/hwui/renderthread/RenderProxy.cpp
index fb1c896..a734401 100644
--- a/libs/hwui/renderthread/RenderProxy.cpp
+++ b/libs/hwui/renderthread/RenderProxy.cpp
@@ -158,7 +158,7 @@
     SETUP_TASK(updateSurface);
     args->context = mContext;
     args->surface = surface.get();
-    postAndWait(task);
+    post(task);
 }
 
 CREATE_BRIDGE2(pauseSurface, CanvasContext* context, Surface* surface) {