Add number of draws to GrGpu stats

src/gpu/GrGpu.h

 /*
  * Copyright 2011 Google Inc.
  *
  * Use of this source code is governed by a BSD-style license that can be
  * found in the LICENSE file.
  */
 
 #ifndef GrGpu_DEFINED
 #define GrGpu_DEFINED
 
@@ skipping 313 matching lines @@
     public:
 #if GR_GPU_STATS
         Stats() { this->reset(); }
 
         void reset() {
             fRenderTargetBinds = 0;
             fShaderCompilations = 0;
             fTextureCreates = 0;
             fTextureUploads = 0;
             fStencilAttachmentCreates = 0;
+            fNumDraws = 0;
         }
 
         int renderTargetBinds() const { return fRenderTargetBinds; }
         void incRenderTargetBinds() { fRenderTargetBinds++; }
         int shaderCompilations() const { return fShaderCompilations; }
         void incShaderCompilations() { fShaderCompilations++; }
         int textureCreates() const { return fTextureCreates; }
         void incTextureCreates() { fTextureCreates++; }
         int textureUploads() const { return fTextureUploads; }
         void incTextureUploads() { fTextureUploads++; }
         void incStencilAttachmentCreates() { fStencilAttachmentCreates++; }
+        void incNumDraws() { fNumDraws++; }
         void dump(SkString*);
 
     private:
         int fRenderTargetBinds;
         int fShaderCompilations;
         int fTextureCreates;
         int fTextureUploads;
         int fStencilAttachmentCreates;
+        int fNumDraws;
 #else
         void dump(SkString*) {};
         void incRenderTargetBinds() {}
         void incShaderCompilations() {}
         void incTextureCreates() {}
         void incTextureUploads() {}
         void incStencilAttachmentCreates() {}
+        void incNumDraws() {}
 #endif
     };
 
     Stats* stats() { return &fStats; }
 
     // creation and deletion of raw texture for testing
     // only to be used in GPU-specific tests
     virtual GrBackendObject createTestingOnlyBackendTexture(void* pixels, int w, int h,
                                                             GrPixelConfig config) const = 0;
     virtual bool isTestingOnlyBackendTexture(GrBackendObject id) const = 0;
@@ skipping 122 matching lines @@
     ResetTimestamp                                                      fResetTimestamp;
     uint32_t                                                            fResetBits;
     // The context owns us, not vice-versa, so this ptr is not ref'ed by Gpu.
     GrContext*                                                          fContext;
 
     friend class GrPathRendering;
     typedef SkRefCnt INHERITED;
 };
 
 #endif