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

chrome/browser/ui/cocoa/tab_contents/chrome_web_contents_view_delegate_mac.h

 // 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.
 
 #ifndef CHROME_BROWSER_UI_COCOA_TAB_CONTENTS_CHROME_WEB_CONTENTS_VIEW_DELEGATE_MAC_H_
 #define CHROME_BROWSER_UI_COCOA_TAB_CONTENTS_CHROME_WEB_CONTENTS_VIEW_DELEGATE_MAC_H_
 
 #if defined(__OBJC__)
 
+#include <memory>
+
 #include "base/macros.h"
-#include "base/memory/scoped_ptr.h"
 #include "components/renderer_context_menu/context_menu_delegate.h"
 #include "content/public/browser/web_contents_view_delegate.h"
 
 class RenderViewContextMenuBase;
 class WebDragBookmarkHandlerMac;
 
 namespace content {
 class RenderWidgetHostView;
 class WebContents;
 }
 
 // A chrome/ specific class that extends WebContentsViewMac with features that
 // live in chrome/.
 class ChromeWebContentsViewDelegateMac
     : public content::WebContentsViewDelegate,
       public ContextMenuDelegate {
  public:
   explicit ChromeWebContentsViewDelegateMac(content::WebContents* web_contents);
   ~ChromeWebContentsViewDelegateMac() override;
 
   // Overridden from WebContentsViewDelegate:
   gfx::NativeWindow GetNativeWindow() override;
   NSObject<RenderWidgetHostViewMacDelegate>* CreateRenderWidgetHostViewDelegate(
       content::RenderWidgetHost* render_widget_host) override;
   content::WebDragDestDelegate* GetDragDestDelegate() override;
   void ShowContextMenu(content::RenderFrameHost* render_frame_host,
                        const content::ContextMenuParams& params) override;
 
   // Overridden from ContextMenuDelegate.
-  scoped_ptr<RenderViewContextMenuBase> BuildMenu(
+  std::unique_ptr<RenderViewContextMenuBase> BuildMenu(
       content::WebContents* web_contents,
       const content::ContextMenuParams& params) override;
-  void ShowMenu(scoped_ptr<RenderViewContextMenuBase> menu) override;
+  void ShowMenu(std::unique_ptr<RenderViewContextMenuBase> menu) override;
 
  private:
   content::RenderWidgetHostView* GetActiveRenderWidgetHostView();
 
   // The context menu. Callbacks are asynchronous so we need to keep it around.
-  scoped_ptr<RenderViewContextMenuBase> context_menu_;
+  std::unique_ptr<RenderViewContextMenuBase> context_menu_;
 
   // The chrome specific delegate that receives events from WebDragDestMac.
-  scoped_ptr<WebDragBookmarkHandlerMac> bookmark_handler_;
+  std::unique_ptr<WebDragBookmarkHandlerMac> bookmark_handler_;
 
   // The WebContents that owns the view.
   content::WebContents* web_contents_;
 
   DISALLOW_COPY_AND_ASSIGN(ChromeWebContentsViewDelegateMac);
 };
 
 #endif  // __OBJC__
 
 #endif  // CHROME_BROWSER_UI_COCOA_TAB_CONTENTS_CHROME_WEB_CONTENTS_VIEW_DELEGATE_MAC_H_