Framework-side of SurfaceView#getBitmap

Bug: 27708453

Change-Id: Ie6fd7eca522d3e6549d8af587c975fd7e6053649
diff --git a/libs/hwui/renderthread/RenderProxy.h b/libs/hwui/renderthread/RenderProxy.h
index 32d3283b..c39319d 100644
--- a/libs/hwui/renderthread/RenderProxy.h
+++ b/libs/hwui/renderthread/RenderProxy.h
@@ -127,6 +127,8 @@
     ANDROID_API void removeFrameMetricsObserver(FrameMetricsObserver* observer);
     ANDROID_API long getDroppedFrameReportCount();
 
+    ANDROID_API static bool copySurfaceInto(sp<Surface>& surface, SkBitmap* bitmap);
+
 private:
     RenderThread& mRenderThread;
     CanvasContext* mContext;