Move instanced index buffer creation to flush time

include/gpu/GrContext.h

 /*
  * Copyright 2010 Google Inc.
  *
  * Use of this source code is governed by a BSD-style license that can be
  * found in the LICENSE file.
  */
 
 #ifndef GrContext_DEFINED
 #define GrContext_DEFINED
 
@@ skipping 521 matching lines @@
     }
 
     ///////////////////////////////////////////////////////////////////////////
     // Functions intended for internal use only.
     GrGpu* getGpu() { return fGpu; }
     const GrGpu* getGpu() const { return fGpu; }
     GrBatchFontCache* getBatchFontCache() { return fBatchFontCache; }
     GrLayerCache* getLayerCache() { return fLayerCache.get(); }
     GrTextBlobCache* getTextBlobCache() { return fTextBlobCache; }
     GrDrawTarget* getTextTarget();
-    const GrIndexBuffer* getQuadIndexBuffer() const;
     GrAARectRenderer* getAARectRenderer() { return fAARectRenderer; }
     GrResourceProvider* resourceProvider() { return fResourceProvider; }
     const GrResourceProvider* resourceProvider() const { return fResourceProvider; }
     GrResourceCache* getResourceCache() { return fResourceCache; }
 
     // Called by tests that draw directly to the context via GrDrawTarget
     void getTestTarget(GrTestTarget*);
 
     void addGpuTraceMarker(const GrGpuTraceMarker* marker);
     void removeGpuTraceMarker(const GrGpuTraceMarker* marker);
@@ skipping 123 matching lines @@
      */
     static void TextBlobCacheOverBudgetCB(void* data);
 
     // TODO see note on createTextContext
     friend class SkGpuDevice;
 
     typedef SkRefCnt INHERITED;
 };
 
 #endif