Convert Pass()→std::move() for Mac build.

ui/views/widget/native_widget_mac.mm

 // Copyright 2014 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/views/widget/native_widget_mac.h"
 
 #import <Cocoa/Cocoa.h>
 
+#include <utility>
+
 #include "base/mac/foundation_util.h"
 #include "base/mac/scoped_nsobject.h"
 #include "base/strings/sys_string_conversions.h"
 #import "ui/base/cocoa/constrained_window/constrained_window_animation.h"
 #import "ui/base/cocoa/window_size_constants.h"
 #include "ui/gfx/font_list.h"
 #import "ui/gfx/mac/coordinate_conversion.h"
 #import "ui/gfx/mac/nswindow_frame_controls.h"
 #include "ui/native_theme/native_theme.h"
 #include "ui/native_theme/native_theme_mac.h"
@@ skipping 341 matching lines @@
   [window performSelector:@selector(close) withObject:nil afterDelay:0];
 }
 
 void NativeWidgetMac::CloseNow() {
   if (!bridge_)
     return;
 
   // Notify observers while |bridged_| is still valid.
   delegate_->OnNativeWidgetDestroying();
   // Reset |bridge_| to NULL before destroying it.
-  scoped_ptr<BridgedNativeWidget> bridge(bridge_.Pass());
+  scoped_ptr<BridgedNativeWidget> bridge(std::move(bridge_));
 }
 
 void NativeWidgetMac::Show() {
   ShowWithWindowState(ui::SHOW_STATE_NORMAL);
 }
 
 void NativeWidgetMac::Hide() {
   if (!bridge_)
     return;
 
@@ skipping 340 matching lines @@
   [[ViewsNSWindowCloseAnimator alloc] initWithWindow:window];
 }
 
 - (void)animationDidEnd:(NSAnimation*)animation {
   [window_ close];
   [animation_ setDelegate:nil];
   [self release];
 }
 
 @end