Convert //ash from scoped_ptr to std::unique_ptr

ash/display/root_window_transformers_unittest.cc

 // Copyright 2013 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 "ash/display/root_window_transformers.h"
 
+#include <memory>
+
 #include "ash/display/display_info.h"
 #include "ash/display/display_manager.h"
 #include "ash/display/display_util.h"
 #include "ash/host/root_window_transformer.h"
 #include "ash/magnifier/magnification_controller.h"
 #include "ash/screen_util.h"
 #include "ash/shelf/shelf.h"
 #include "ash/shelf/shelf_widget.h"
 #include "ash/shell.h"
 #include "ash/test/ash_test_base.h"
@@ skipping 91 matching lines @@
   float scroll_y_offset_ordinal_;
 
   DISALLOW_COPY_AND_ASSIGN(TestEventHandler);
 };
 
 float GetStoredUIScale(int64_t id) {
   return Shell::GetInstance()->display_manager()->GetDisplayInfo(id).
       GetEffectiveUIScale();
 }
 
-scoped_ptr<RootWindowTransformer>
+std::unique_ptr<RootWindowTransformer>
 CreateCurrentRootWindowTransformerForMirroring() {
   DisplayManager* display_manager = Shell::GetInstance()->display_manager();
   DCHECK(display_manager->IsInMirrorMode());
   const DisplayInfo& mirror_display_info =
       display_manager->GetDisplayInfo(display_manager->mirroring_display_id());
   const DisplayInfo& source_display_info = display_manager->GetDisplayInfo(
       gfx::Screen::GetScreen()->GetPrimaryDisplay().id());
-  return scoped_ptr<RootWindowTransformer>(
+  return std::unique_ptr<RootWindowTransformer>(
       CreateRootWindowTransformerForMirroredDisplay(source_display_info,
                                                     mirror_display_info));
 }
 
 }  // namespace
 
 typedef test::AshTestBase RootWindowTransformersTest;
 
 #if defined(OS_WIN)
 // TODO(scottmg): RootWindow doesn't get resized on Windows
@@ skipping 265 matching lines @@
   Shell::GetInstance()->RemovePreTargetHandler(&event_handler);
 }
 
 TEST_F(RootWindowTransformersTest, LetterBoxPillarBox) {
   if (!SupportsMultipleDisplays())
     return;
   test::MirrorWindowTestApi test_api;
   DisplayManager* display_manager = Shell::GetInstance()->display_manager();
   display_manager->SetMultiDisplayMode(DisplayManager::MIRRORING);
   UpdateDisplay("400x200,500x500");
-  scoped_ptr<RootWindowTransformer> transformer(
+  std::unique_ptr<RootWindowTransformer> transformer(
       CreateCurrentRootWindowTransformerForMirroring());
   // Y margin must be margin is (500 - 500/400 * 200) / 2 = 125.
   EXPECT_EQ("0,125,0,125", transformer->GetHostInsets().ToString());
 
   UpdateDisplay("200x400,500x500");
   // The aspect ratio is flipped, so X margin is now 125.
   transformer = CreateCurrentRootWindowTransformerForMirroring();
   EXPECT_EQ("125,0,125,0", transformer->GetHostInsets().ToString());
 }
 
 }  // namespace ash