Replace scoped_ptr with std::unique_ptr in //ui

ui/ozone/public/ozone_gpu_test_helper.h

Index: ui/ozone/public/ozone_gpu_test_helper.h
diff --git a/ui/ozone/public/ozone_gpu_test_helper.h b/ui/ozone/public/ozone_gpu_test_helper.h
index 5a740ac4ec87da493667c0fcd4d376363a5a0610..5e92b03c97a5d6c6c0d9ef5d917b994d11f4f7b0 100644
--- a/ui/ozone/public/ozone_gpu_test_helper.h
+++ b/ui/ozone/public/ozone_gpu_test_helper.h
@@ -5,9 +5,10 @@
 #ifndef UI_OZONE_PUBLIC_OZONE_GPU_THREAD_HELPER_H_
 #define UI_OZONE_PUBLIC_OZONE_GPU_THREAD_HELPER_H_
 
+#include <memory>
+
 #include "base/macros.h"
 #include "base/memory/ref_counted.h"
-#include "base/memory/scoped_ptr.h"
 #include "ui/ozone/ozone_export.h"
 
 namespace base {
@@ -37,9 +38,9 @@ class OZONE_EXPORT OzoneGpuTestHelper {
       const scoped_refptr<base::SingleThreadTaskRunner>& gpu_task_runner);
 
  private:
-  scoped_ptr<FakeGpuProcess> fake_gpu_process_;
-  scoped_ptr<FakeGpuProcessHost> fake_gpu_process_host_;
-  scoped_ptr<base::Thread> io_helper_thread_;
+  std::unique_ptr<FakeGpuProcess> fake_gpu_process_;
+  std::unique_ptr<FakeGpuProcessHost> fake_gpu_process_host_;
+  std::unique_ptr<base::Thread> io_helper_thread_;
 
   DISALLOW_COPY_AND_ASSIGN(OzoneGpuTestHelper);
 };