Hide drawBatch on GrDrawTarget from test Methods

include/gpu/GrDrawContext.h

 /*
  * Copyright 2015 Google Inc.
  *
  * Use of this source code is governed by a BSD-style license that can be
  * found in the LICENSE file.
  */
 
 #ifndef GrDrawContext_DEFINED
 #define GrDrawContext_DEFINED
 
@@ skipping 259 matching lines @@
      * TODO: Figure out a better model that allows us to roll this method into drawBatch.
      */
     void drawPathBatch(const GrPipelineBuilder&, GrDrawPathBatchBase*);
 
     int width() const { return fRenderTarget->width(); }
     int height() const { return fRenderTarget->height(); }
     int numColorSamples() const { return fRenderTarget->numColorSamples(); }
 
     GrRenderTarget* accessRenderTarget() { return fRenderTarget; }
 
+    ///////////////////////////////////////////////////////////////////////////////////////////////
+    // Functions intended for internal use only.
+    void internal_drawBatch(const GrPipelineBuilder& pipelineBuilder, GrDrawBatch* batch);
+
 private:
     friend class GrAtlasTextBlob; // for access to drawBatch
     friend class GrDrawingManager; // for ctor
 
     SkDEBUGCODE(void validate() const;)
 
     GrDrawContext(GrDrawingManager*, GrRenderTarget*, const SkSurfaceProps* surfaceProps,
                   GrSingleOwner*);
 
     void internalDrawPath(GrPipelineBuilder*,
@@ skipping 17 matching lines @@
     GrDrawTarget*     fDrawTarget;
     GrTextContext*    fTextContext; // lazily gotten from GrContext::DrawingManager
 
     SkSurfaceProps    fSurfaceProps;
 
     // In debug builds we guard against improper thread handling
     SkDEBUGCODE(mutable GrSingleOwner* fSingleOwner;)
 };
 
 #endif