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

chrome/browser/ui/cocoa/renderer_context_menu/render_view_context_menu_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 "chrome/browser/ui/cocoa/renderer_context_menu/render_view_context_menu_mac.h"
 
 #include <utility>
 
 #include "base/compiler_specific.h"
 #include "base/mac/mac_util.h"
@@ skipping 168 matching lines @@
 // Relies on the tag being set to the command id.
 
 RenderViewContextMenuMac::RenderViewContextMenuMac(
     content::RenderFrameHost* render_frame_host,
     const content::ContextMenuParams& params,
     NSView* parent_view)
     : RenderViewContextMenu(render_frame_host, params),
       speech_submenu_model_(this),
       bidi_submenu_model_(this),
       parent_view_(parent_view) {
-  scoped_ptr<ToolkitDelegate> delegate(new ToolkitDelegateMac(this));
+  std::unique_ptr<ToolkitDelegate> delegate(new ToolkitDelegateMac(this));
   set_toolkit_delegate(std::move(delegate));
 }
 
 RenderViewContextMenuMac::~RenderViewContextMenuMac() {
 }
 
 void RenderViewContextMenuMac::Show() {
   menu_controller_.reset(
       [[MenuController alloc] initWithModel:&menu_model_
                      useWithPopUpButtonCell:NO]);
@@ skipping 238 matching lines @@
   if (view)
     view->SpeakSelection();
 }
 
 void RenderViewContextMenuMac::StopSpeaking() {
   content::RenderWidgetHostView* view =
       GetRenderViewHost()->GetWidget()->GetView();
   if (view)
     view->StopSpeaking();
 }