Replace scoped_ptr with std::unique_ptr in //ui

ui/ozone/platform/drm/gpu/drm_thread_proxy.h

Index: ui/ozone/platform/drm/gpu/drm_thread_proxy.h
diff --git a/ui/ozone/platform/drm/gpu/drm_thread_proxy.h b/ui/ozone/platform/drm/gpu/drm_thread_proxy.h
index 213e0527bf15d422b8365391e718ec4e85574a09..c67a47ee0afef04a6f0765680a947d921fcf2b5e 100644
--- a/ui/ozone/platform/drm/gpu/drm_thread_proxy.h
+++ b/ui/ozone/platform/drm/gpu/drm_thread_proxy.h
@@ -5,9 +5,10 @@
 #ifndef UI_OZONE_PLATFORM_DRM_GPU_DRM_THREAD_PROXY_H_
 #define UI_OZONE_PLATFORM_DRM_GPU_DRM_THREAD_PROXY_H_
 
+#include <memory>
+
 #include "base/macros.h"
 #include "base/memory/ref_counted.h"
-#include "base/memory/scoped_ptr.h"
 #include "ui/ozone/platform/drm/gpu/drm_thread.h"
 
 namespace ui {
@@ -25,7 +26,7 @@ class DrmThreadProxy {
 
   void BindThreadIntoMessagingProxy(InterThreadMessagingProxy* messaging_proxy);
 
-  scoped_ptr<DrmWindowProxy> CreateDrmWindowProxy(
+  std::unique_ptr<DrmWindowProxy> CreateDrmWindowProxy(
       gfx::AcceleratedWidget widget);
 
   scoped_refptr<GbmBuffer> CreateBuffer(gfx::AcceleratedWidget widget,