Add ES 3.0 fallback for instanced rendering

include/gpu/GrCaps.h

 
 /*
  * Copyright 2013 Google Inc.
  *
  * Use of this source code is governed by a BSD-style license that can be
  * found in the LICENSE file.
  */
 #ifndef GrCaps_DEFINED
 #define GrCaps_DEFINED
 
@@ skipping 259 matching lines @@
 
     bool suppressPrints() const { return fSuppressPrints; }
 
     bool immediateFlush() const { return fImmediateFlush; }
 
     size_t bufferMapThreshold() const {
         SkASSERT(fBufferMapThreshold >= 0);
         return fBufferMapThreshold;
     }
 
-    bool supportsInstancedDraws() const {
-        return fSupportsInstancedDraws;
-    }
-
     bool fullClearIsFree() const { return fFullClearIsFree; }
 
     /** True in environments that will issue errors if memory uploaded to buffers 
         is not initialized (even if not read by draw calls). */
     bool mustClearUploadedBufferData() const { return fMustClearUploadedBufferData; }
 
     bool sampleShadingSupport() const { return fSampleShadingSupport; }
 
 protected:
     /** Subclasses must call this at the end of their constructors in order to apply caps
@@ skipping 13 matching lines @@
     bool fReuseScratchTextures                       : 1;
     bool fReuseScratchBuffers                        : 1;
     bool fGpuTracingSupport                          : 1;
     bool fCompressedTexSubImageSupport               : 1;
     bool fOversizedStencilSupport                    : 1;
     bool fTextureBarrierSupport                      : 1;
     bool fSampleLocationsSupport                     : 1;
     bool fMultisampleDisableSupport                  : 1;
     bool fUsesMixedSamples                           : 1;
     bool fPreferClientSideDynamicBuffers             : 1;
-    bool fSupportsInstancedDraws                     : 1;
     bool fFullClearIsFree                            : 1;
     bool fMustClearUploadedBufferData                : 1;
 
     // Driver workaround
     bool fUseDrawInsteadOfClear                      : 1;
     bool fUseDrawInsteadOfPartialRenderTargetWrite   : 1;
     bool fUseDrawInsteadOfAllRenderTargetWrites      : 1;
     bool fAvoidInstancedDrawsToFPTargets             : 1;
 
     // ANGLE workaround
@@ skipping 21 matching lines @@
 private:
     virtual void onApplyOptionsOverrides(const GrContextOptions&) {};
 
     bool fSuppressPrints : 1;
     bool fImmediateFlush: 1;
 
     typedef SkRefCnt INHERITED;
 };
 
 #endif