Add counting of some GL calls

include/gpu/GrContext.h

Index: include/gpu/GrContext.h
diff --git a/include/gpu/GrContext.h b/include/gpu/GrContext.h
index 4172543b5eca25fccb8d77cab7935706b3d21950..48064c1645bd452584b242b3c5cbeaa4d27778b1 100644
--- a/include/gpu/GrContext.h
+++ b/include/gpu/GrContext.h
@@ -960,6 +960,15 @@ public:
     void printCacheStats() const;
 #endif
 
+#if GR_GPU_STATS
+    struct GPUStats {
+        int fBindFrameBufferCalls;
+        int fCompileShaderCalls;
+    };
+
+    const GPUStats& gpuStats() const;
+#endif
+
 private:
     // Used to indicate whether a draw should be performed immediately or queued in fDrawBuffer.
     enum BufferedDraw {