Replace scoped_ptr with std::unique_ptr in //ui

ui/ozone/platform/drm/host/drm_overlay_manager.h

 // Copyright 2016 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_HOST_DRM_OVERLAY_MANAGER_H_
 #define UI_OZONE_PLATFORM_DRM_HOST_DRM_OVERLAY_MANAGER_H_
 
 #include <stdint.h>
 
 #include <vector>
 
 #include "base/containers/mru_cache.h"
 #include "base/macros.h"
 #include "base/memory/scoped_vector.h"
 #include "ui/ozone/platform/drm/host/gpu_thread_adapter.h"
 #include "ui/ozone/public/overlay_candidates_ozone.h"
 #include "ui/ozone/public/overlay_manager_ozone.h"
 
 namespace ui {
 class DrmWindowHostManager;
 
 class DrmOverlayManager : public OverlayManagerOzone {
  public:
   DrmOverlayManager(GpuThreadAdapter* proxy,
                     DrmWindowHostManager* window_manager);
   ~DrmOverlayManager() override;
 
   // OverlayManagerOzone:
-  scoped_ptr<OverlayCandidatesOzone> CreateOverlayCandidates(
+  std::unique_ptr<OverlayCandidatesOzone> CreateOverlayCandidates(
       gfx::AcceleratedWidget w) override;
 
   void ResetCache();
 
   // Communication-free implementations of actions performed in response to
   // messages from the GPU thread.
   void GpuSentOverlayResult(gfx::AcceleratedWidget widget,
                             const std::vector<OverlayCheck_Params>& params);
 
   // Service method for DrmOverlayCandidatesHost
@@ skipping 16 matching lines @@
   // List of all OverlayCheck_Params which have been validated in GPU side.
   // Value is set to true if we are waiting for validation results from GPU.
   base::MRUCache<std::vector<OverlayCheck_Params>, bool> cache_;
 
   DISALLOW_COPY_AND_ASSIGN(DrmOverlayManager);
 };
 
 }  // namespace ui
 
 #endif  // UI_OZONE_PLATFORM_DRM_HOST_DRM_OVERLAY_MANAGER_H_