Convert Pass()→std::move() in //ash

ash/display/window_tree_host_manager.cc

 // Copyright (c) 2012 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/window_tree_host_manager.h"
 
 #include <algorithm>
 #include <cmath>
 #include <map>
+#include <utility>
 
 #include "ash/ash_switches.h"
 #include "ash/display/cursor_window_controller.h"
 #include "ash/display/display_layout_store.h"
 #include "ash/display/display_manager.h"
 #include "ash/display/mirror_window_controller.h"
 #include "ash/display/root_window_transformers.h"
 #include "ash/host/ash_window_tree_host.h"
 #include "ash/host/ash_window_tree_host_init_params.h"
 #include "ash/host/root_window_transformer.h"
@@ skipping 121 matching lines @@
 
   if (!display.IsInternal())
     scale *= kCursorMultiplierForExternalDisplays;
 
   ui::CursorController::GetInstance()->SetCursorConfigForWindow(
       host->GetAcceleratedWidget(), info.GetActiveRotation(), scale);
 #endif
 #endif
   scoped_ptr<RootWindowTransformer> transformer(
       CreateRootWindowTransformerForDisplay(host->window(), display));
-  ash_host->SetRootWindowTransformer(transformer.Pass());
+  ash_host->SetRootWindowTransformer(std::move(transformer));
 
   DisplayMode mode =
       GetDisplayManager()->GetActiveModeForDisplayId(display.id());
   if (mode.refresh_rate > 0.0f) {
     host->compositor()->SetAuthoritativeVSyncInterval(
         base::TimeDelta::FromMicroseconds(base::Time::kMicrosecondsPerSecond /
                                           mode.refresh_rate));
   }
 
   // Just movnig the display requires the full redraw.
@@ skipping 765 matching lines @@
       ->display_configurator_animation()
       ->StartFadeInAnimation();
 #endif
 }
 
 void WindowTreeHostManager::SetMirrorModeAfterAnimation(bool mirror) {
   GetDisplayManager()->SetMirrorMode(mirror);
 }
 
 }  // namespace ash