Convert Pass()→std::move() in ui/

ui/aura/window_tree_host_platform.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 "ui/aura/window_tree_host_platform.h"
 
+#include <utility>
+
 #include "base/trace_event/trace_event.h"
 #include "ui/aura/window_event_dispatcher.h"
 #include "ui/compositor/compositor.h"
 #include "ui/events/event.h"
 #include "ui/gfx/screen.h"
 
 #if defined(OS_ANDROID)
 #include "ui/platform_window/android/platform_window_android.h"
 #endif
 
@@ skipping 31 matching lines @@
 }
 
 WindowTreeHostPlatform::WindowTreeHostPlatform()
     : widget_(gfx::kNullAcceleratedWidget),
       current_cursor_(ui::kCursorNull) {
   CreateCompositor();
 }
 
 void WindowTreeHostPlatform::SetPlatformWindow(
     scoped_ptr<ui::PlatformWindow> window) {
-  window_ = window.Pass();
+  window_ = std::move(window);
 }
 
 WindowTreeHostPlatform::~WindowTreeHostPlatform() {
   DestroyCompositor();
   DestroyDispatcher();
 }
 
 ui::EventSource* WindowTreeHostPlatform::GetEventSource() {
   return this;
 }
@@ skipping 107 matching lines @@
   DCHECK_EQ(widget, widget_);
   widget_ = gfx::kNullAcceleratedWidget;
 }
 
 void WindowTreeHostPlatform::OnActivationChanged(bool active) {
   if (active)
     OnHostActivated();
 }
 
 }  // namespace aura