Start using RenderTargetProxy (omnibus)

src/gpu/batches/GrBatch.h

Index: src/gpu/batches/GrBatch.h
diff --git a/src/gpu/batches/GrBatch.h b/src/gpu/batches/GrBatch.h
index bef01b77c48144b038d0890d53e3ccee67d6ef30..aedd257bc2513319840a8d9339eeb62a58828ce9 100644
--- a/src/gpu/batches/GrBatch.h
+++ b/src/gpu/batches/GrBatch.h
@@ -20,6 +20,7 @@ class GrCaps;
 class GrGpuCommandBuffer;
 class GrBatchFlushState;
 class GrRenderTarget;
+class GrRenderTargetProxy;
 
 /**
  * GrBatch is the base class for all Ganesh deferred geometry generators.  To facilitate
@@ -140,7 +141,7 @@ public:
     }
 
     /** Can remove this when multi-draw-buffer lands */
-    virtual GrRenderTarget* renderTarget() const = 0;
+    virtual GrRenderTargetProxy* rtp() const = 0;
 
 protected:
     /**