move some copy surface stuff to GrFlushToGpuDrawTarget

src/gpu/GrFlushToGpuDrawTarget.h

Index: src/gpu/GrFlushToGpuDrawTarget.h
diff --git a/src/gpu/GrFlushToGpuDrawTarget.h b/src/gpu/GrFlushToGpuDrawTarget.h
index f3f34b0cc8764c285d514784bee43ed239f8c622..2383c623d089a6f3e776de4f35fef9c8b6151f3a 100644
--- a/src/gpu/GrFlushToGpuDrawTarget.h
+++ b/src/gpu/GrFlushToGpuDrawTarget.h
@@ -79,6 +79,11 @@ private:
     void willReserveVertexAndIndexSpace(int vertexCount,
                                         size_t vertexStride,
                                         int indexCount) SK_OVERRIDE;
+    bool onCanCopySurface(const GrSurface* dst,
+                          const GrSurface* src,
+                          const SkIRect& srcRect,
+                          const SkIPoint& dstPoint) SK_OVERRIDE;
+    bool onInitCopySurfaceDstDesc(const GrSurface* src, GrSurfaceDesc* desc) SK_OVERRIDE;
 
     GeoPoolStateStack                   fGeoPoolStateStack;
     SkAutoTUnref<GrGpu>                 fGpu;