Implement TODO(romainguy)

 Bug: 14277445

Change-Id: Id52d6f7fcc023000adcc440bd4da67d9a673536b
diff --git a/libs/hwui/renderthread/RenderProxy.h b/libs/hwui/renderthread/RenderProxy.h
index 013c3bd..4a7e70a 100644
--- a/libs/hwui/renderthread/RenderProxy.h
+++ b/libs/hwui/renderthread/RenderProxy.h
@@ -67,6 +67,7 @@
     ANDROID_API void updateSurface(const sp<ANativeWindow>& window);
     ANDROID_API void pauseSurface(const sp<ANativeWindow>& window);
     ANDROID_API void setup(int width, int height);
+    ANDROID_API void setOpaque(bool opaque);
     ANDROID_API int syncAndDrawFrame(nsecs_t frameTimeNanos,
             int dirtyLeft, int dirtyTop, int dirtyRight, int dirtyBottom);
     ANDROID_API void destroyCanvasAndSurface();