Merge hasFunctors & pushStaging into prepareTree

 Bug: 13902607
 Fixes synchronous mode for WebView in HardwareLayers

Change-Id: I90de1e26dcfd9b75cc2f03bac72705fc23237b68
diff --git a/libs/hwui/renderthread/DrawFrameTask.h b/libs/hwui/renderthread/DrawFrameTask.h
index ddf756b..a512408 100644
--- a/libs/hwui/renderthread/DrawFrameTask.h
+++ b/libs/hwui/renderthread/DrawFrameTask.h
@@ -68,14 +68,10 @@
     };
 
     void postAndWait(RenderThread* renderThread, TaskMode mode);
-    void syncFrameState();
+    bool syncFrameState();
     void unblockUiThread();
     static void drawRenderNode(CanvasContext* context, RenderNode* renderNode, Rect* dirty);
 
-    // This checks to see if there are any drawGlFunctors which would require
-    // a synchronous drawRenderNode()
-    static bool requiresSynchronousDraw(RenderNode* renderNode);
-
     Mutex mLock;
     Condition mSignal;