convert //gpu to std::unique_ptr

cc/surfaces/surface_display_output_surface_unittest.cc

 // Copyright 2015 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.
 
 #include "cc/surfaces/surface_display_output_surface.h"
 
+#include <memory>
+
 #include "cc/surfaces/onscreen_display_client.h"
 #include "cc/surfaces/surface_id_allocator.h"
 #include "cc/surfaces/surface_manager.h"
 #include "cc/test/fake_output_surface.h"
 #include "cc/test/fake_output_surface_client.h"
 #include "cc/test/ordered_simple_task_runner.h"
 #include "cc/test/test_context_provider.h"
 #include "cc/test/test_gpu_memory_buffer_manager.h"
 #include "cc/test/test_shared_bitmap_manager.h"
 #include "testing/gtest/include/gtest/gtest.h"
@@ skipping 91 matching lines @@
     SwapBuffersWithDamage(display_rect_);
 
     EXPECT_EQ(0u, output_surface_->num_sent_frames());
     task_runner_->RunUntilIdle();
     EXPECT_EQ(1u, output_surface_->num_sent_frames());
   }
 
  protected:
   std::unique_ptr<base::SimpleTestTickClock> now_src_;
   scoped_refptr<OrderedSimpleTaskRunner> task_runner_;
-  scoped_ptr<BackToBackBeginFrameSource> begin_frame_source_;
+  std::unique_ptr<BackToBackBeginFrameSource> begin_frame_source_;
   SurfaceIdAllocator allocator_;
 
   const gfx::Size display_size_;
   const gfx::Rect display_rect_;
   FakeOutputSurface* output_surface_;
   SurfaceManager surface_manager_;
   TestSharedBitmapManager bitmap_manager_;
   TestGpuMemoryBufferManager gpu_memory_buffer_manager_;
   RendererSettings renderer_settings_;
   FakeOnscreenDisplayClient display_client_;
@@ skipping 41 matching lines @@
   EXPECT_EQ(1u, output_surface_->num_sent_frames());
 
   SwapBuffersWithDamage(gfx::Rect());
   EXPECT_EQ(1u, output_surface_->num_sent_frames());
   task_runner_->RunUntilIdle();
   EXPECT_EQ(1u, output_surface_->num_sent_frames());
 }
 
 }  // namespace
 }  // namespace cc