Remove all uses of skia::RefPtr and stale includes

ui/ozone/platform/drm/gpu/mock_drm_device.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_DRM_GPU_MOCK_DRM_DEVICE_H_
 #define UI_OZONE_PLATFORM_DRM_GPU_MOCK_DRM_DEVICE_H_
 
 #include <stddef.h>
 #include <stdint.h>
 
 #include <map>
 #include <queue>
 #include <vector>
 
 #include "base/macros.h"
-#include "skia/ext/refptr.h"
+#include "third_party/skia/include/core/SkRefCnt.h"
 #include "third_party/skia/include/core/SkSurface.h"
 #include "ui/ozone/platform/drm/gpu/drm_device.h"
 
 namespace ui {
 
 // The real DrmDevice makes actual DRM calls which we can't use in unit tests.
 class MockDrmDevice : public DrmDevice {
  public:
   MockDrmDevice();
   MockDrmDevice(bool use_sync_flips,
@@ skipping 117 matching lines @@
   std::map<uint32_t, uint32_t> crtc_cursor_map_;
 
   std::queue<PageFlipCallback> callbacks_;
 
   DISALLOW_COPY_AND_ASSIGN(MockDrmDevice);
 };
 
 }  // namespace ui
 
 #endif  // UI_OZONE_PLATFORM_DRM_GPU_MOCK_DRM_DEVICE_H_