Convert //ash from scoped_ptr to std::unique_ptr

ash/display/mirror_window_controller.cc

 // Copyright (c) 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/mirror_window_controller.h"
 
 #include <utility>
 
 #if defined(USE_X11)
 #include <X11/Xlib.h>
@@ skipping 120 matching lines @@
              ? DisplayManager::UNIFIED
              : (display_manager->IsInMirrorMode() ? DisplayManager::MIRRORING
                                                   : DisplayManager::EXTENDED);
 }
 
 }  // namespace
 
 struct MirrorWindowController::MirroringHostInfo {
   MirroringHostInfo();
   ~MirroringHostInfo();
-  scoped_ptr<AshWindowTreeHost> ash_host;
+  std::unique_ptr<AshWindowTreeHost> ash_host;
   gfx::Size mirror_window_host_size;
   aura::Window* mirror_window = nullptr;
 };
 
 MirrorWindowController::MirroringHostInfo::MirroringHostInfo() {
 }
 MirrorWindowController::MirroringHostInfo::~MirroringHostInfo() {
 }
 
 MirrorWindowController::MirrorWindowController()
@@ skipping 10 matching lines @@
     const std::vector<DisplayInfo>& display_info_list) {
   static int mirror_host_count = 0;
   DisplayManager* display_manager = Shell::GetInstance()->display_manager();
   const gfx::Display& primary = gfx::Screen::GetScreen()->GetPrimaryDisplay();
   const DisplayInfo& source_display_info =
       display_manager->GetDisplayInfo(primary.id());
 
   multi_display_mode_ = GetCurrentMultiDisplayMode();
 
   for (const DisplayInfo& display_info : display_info_list) {
-    scoped_ptr<RootWindowTransformer> transformer;
+    std::unique_ptr<RootWindowTransformer> transformer;
     if (display_manager->IsInMirrorMode()) {
       transformer.reset(CreateRootWindowTransformerForMirroredDisplay(
           source_display_info, display_info));
     } else if (display_manager->IsInUnifiedMode()) {
       gfx::Display display =
           display_manager->GetMirroringDisplayById(display_info.id());
       transformer.reset(CreateRootWindowTransformerForUnifiedDesktop(
           primary.bounds(), display));
     } else {
       NOTREACHED();
@@ skipping 197 matching lines @@
   // EventProcessor may be accessed after this call if the mirroring window
   // was deleted as a result of input event (e.g. shortcut), so don't delete
   // now.
   if (delay_host_deletion)
     base::ThreadTaskRunnerHandle::Get()->DeleteSoon(FROM_HERE, host_info);
   else
     delete host_info;
 }
 
 }  // namespace ash