Add counting of some GL calls

src/gpu/gl/GrGpuGL.h

Index: src/gpu/gl/GrGpuGL.h
diff --git a/src/gpu/gl/GrGpuGL.h b/src/gpu/gl/GrGpuGL.h
index a8130d8099d63b00c72ab7c2b51e173851ff2f6c..06a0e3bf2e0037d45a1fbb7e9c39bd099882ad15 100644
--- a/src/gpu/gl/GrGpuGL.h
+++ b/src/gpu/gl/GrGpuGL.h
@@ -150,7 +150,7 @@ private:
                                   bool insideClip) SK_OVERRIDE;
     virtual bool flushGraphicsState(DrawType, const GrDeviceCoordTexture* dstCopy) SK_OVERRIDE;
 
-    // GrDrawTarget ovverides
+    // GrDrawTarget overrides
     virtual void didAddGpuTraceMarker() SK_OVERRIDE;
     virtual void didRemoveGpuTraceMarker() SK_OVERRIDE;
 
@@ -267,6 +267,8 @@ private:
                                    GrGLuint texID,
                                    GrGLRenderTarget::Desc* desc);
 
+    GrGLuint bindSurfaceAsFBO(GrSurface* surface, GrGLenum fboTarget, GrGLIRect* viewport);
+
     GrGLContext fGLContext;
 
     // GL program-related state