Convert //chrome/browser/ui from scoped_ptr to std::unique_ptr

chrome/browser/ui/cocoa/toolbar/media_router_action_platform_delegate_cocoa.mm

 // 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 "chrome/browser/ui/cocoa/toolbar/media_router_action_platform_delegate_cocoa.h"
 
 #include "base/logging.h"
+#include "base/memory/ptr_util.h"
 #include "chrome/browser/ui/browser.h"
 #include "chrome/browser/ui/browser_window.h"
 #import "chrome/browser/ui/cocoa/app_menu/app_menu_controller.h"
 #import "chrome/browser/ui/cocoa/browser_window_controller.h"
 #import "chrome/browser/ui/cocoa/toolbar/toolbar_controller.h"
 
 // static
-scoped_ptr<MediaRouterActionPlatformDelegate>
+std::unique_ptr<MediaRouterActionPlatformDelegate>
 MediaRouterActionPlatformDelegate::Create(Browser* browser) {
-  return make_scoped_ptr(new MediaRouterActionPlatformDelegateCocoa(browser));
+  return base::WrapUnique(new MediaRouterActionPlatformDelegateCocoa(browser));
 }
 
 MediaRouterActionPlatformDelegateCocoa::MediaRouterActionPlatformDelegateCocoa(
     Browser* browser)
     : MediaRouterActionPlatformDelegate(),
       browser_(browser) {
   DCHECK(browser_);
 }
 
 MediaRouterActionPlatformDelegateCocoa::
     ~MediaRouterActionPlatformDelegateCocoa() {
 }
 
 bool MediaRouterActionPlatformDelegateCocoa::CloseOverflowMenuIfOpen() {
   // TODO(apacible): This should be factored to share code with extension
   // actions.
   AppMenuController* appMenuController =
       [[[BrowserWindowController
           browserWindowControllerForWindow:
               browser_->window()->GetNativeWindow()]
           toolbarController] appMenuController];
   if (![appMenuController isMenuOpen])
     return false;
 
   [appMenuController cancel];
   return true;
 }