Turn RootWindowController Menus Async

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>
 
@@ skipping 701 matching lines @@
 bool NativeWidgetPrivate::IsMouseButtonDown() {
   return [NSEvent pressedMouseButtons] != 0;
 }
 
 // static
 gfx::FontList NativeWidgetPrivate::GetWindowTitleFontList() {
   NOTIMPLEMENTED();
   return gfx::FontList();
 }
 
+// static
+gfx::NativeView NativeWidgetPrivate::GetCapture(gfx::NativeView native_view) {
+  NOTIMPLEMENTED();
+  return nullptr;
+}
+
 }  // namespace internal
 }  // namespace views
 
 @implementation ViewsNSWindowCloseAnimator
 
 - (id)initWithWindow:(NSWindow*)window {
   if ((self = [super init])) {
     window_.reset([window retain]);
     animation_.reset(
         [[ConstrainedWindowAnimationHide alloc] initWithWindow:window]);
     [animation_ setDelegate:self];
     [animation_ setAnimationBlockingMode:NSAnimationNonblocking];
     [animation_ startAnimation];
   }
   return self;
 }
 
 + (void)closeWindowWithAnimation:(NSWindow*)window {
   [[ViewsNSWindowCloseAnimator alloc] initWithWindow:window];
 }
 
 - (void)animationDidEnd:(NSAnimation*)animation {
   [window_ close];
   [animation_ setDelegate:nil];
   [self release];
 }
 
 @end