[Ozone-Dri] Decouple the IO helper thread from DriWrapper

ui/ozone/platform/dri/test/mock_dri_wrapper.h

 // Copyright 2014 The Chromium Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 #ifndef UI_OZONE_PLATFORM_DRI_TEST_MOCK_DRI_WRAPPER_H_
 #define UI_OZONE_PLATFORM_DRI_TEST_MOCK_DRI_WRAPPER_H_
 
 #include <queue>
 #include <vector>
 
@@ skipping 98 matching lines @@
   int add_framebuffer_call_count_;
   int remove_framebuffer_call_count_;
   int page_flip_call_count_;
   int overlay_flip_call_count_;
 
   bool set_crtc_expectation_;
   bool add_framebuffer_expectation_;
   bool page_flip_expectation_;
   bool create_dumb_buffer_expectation_;
 
+  bool use_sync_flips_;
+
   uint32_t current_framebuffer_;
 
   std::vector<skia::RefPtr<SkSurface> > buffers_;
 
   std::queue<PageFlipCallback> callbacks_;
 
   DISALLOW_COPY_AND_ASSIGN(MockDriWrapper);
 };
 
 }  // namespace ui
 
 #endif  // UI_OZONE_PLATFORM_DRI_TEST_MOCK_DRI_WRAPPER_H_