Replace scoped_ptr with std::unique_ptr in //ui

ui/ozone/platform/wayland/wayland_surface_factory_unittest.cc

 // 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.
 
 #include "testing/gtest/include/gtest/gtest.h"
 #include "third_party/skia/include/core/SkSurface.h"
 #include "ui/ozone/platform/wayland/fake_server.h"
 #include "ui/ozone/platform/wayland/mock_platform_window_delegate.h"
 #include "ui/ozone/platform/wayland/wayland_surface_factory.h"
 #include "ui/ozone/platform/wayland/wayland_test.h"
@@ skipping 13 matching lines @@
   ~WaylandSurfaceFactoryTest() override {}
 
   void SetUp() override {
     WaylandTest::SetUp();
     canvas = surface_factory.CreateCanvasForWidget(widget);
     ASSERT_TRUE(canvas);
   }
 
  protected:
   WaylandSurfaceFactory surface_factory;
-  scoped_ptr<SurfaceOzoneCanvas> canvas;
+  std::unique_ptr<SurfaceOzoneCanvas> canvas;
 
  private:
   DISALLOW_COPY_AND_ASSIGN(WaylandSurfaceFactoryTest);
 };
 
 TEST_F(WaylandSurfaceFactoryTest, Canvas) {
   canvas->GetSurface();
   canvas->PresentCanvas(gfx::Rect(5, 10, 20, 15));
 
   Expectation damage = EXPECT_CALL(*surface, Damage(5, 10, 20, 15));
@@ skipping 29 matching lines @@
   Sync();
 
   ASSERT_TRUE(buffer_resource);
   wl_shm_buffer* buffer = wl_shm_buffer_get(buffer_resource);
   ASSERT_TRUE(buffer);
   EXPECT_EQ(wl_shm_buffer_get_width(buffer), 100);
   EXPECT_EQ(wl_shm_buffer_get_height(buffer), 50);
 }
 
 }  // namespace ui