gpu: Report time spent performing async texture uploads.

ui/gl/async_pixel_transfer_delegate_stub.h

Index: ui/gl/async_pixel_transfer_delegate_stub.h
diff --git a/ui/gl/async_pixel_transfer_delegate_stub.h b/ui/gl/async_pixel_transfer_delegate_stub.h
index 5224107b70c847818d13a4d49bc6613fc43187d7..dc24f8dada0338d75bae3afb57f1200b008527b3 100644
--- a/ui/gl/async_pixel_transfer_delegate_stub.h
+++ b/ui/gl/async_pixel_transfer_delegate_stub.h
@@ -45,11 +45,16 @@ class AsyncPixelTransferDelegateStub : public AsyncPixelTransferDelegate {
       AsyncPixelTransferState* transfer_state,
       const AsyncTexSubImage2DParams& tex_params,
       const AsyncMemoryParams& mem_params) OVERRIDE;
+  virtual uint32 GetTextureUploadCount() OVERRIDE;
+  virtual base::TimeDelta GetTotalTextureUploadTime() OVERRIDE;
  private:
   // implement AsyncPixelTransferDelegate:
   virtual AsyncPixelTransferState*
       CreateRawPixelTransferState(GLuint texture_id) OVERRIDE;
 
+  int texture_upload_count_;
+  base::TimeDelta total_texture_upload_time_;
+
   DISALLOW_COPY_AND_ASSIGN(AsyncPixelTransferDelegateStub);
 };