Added default implementations of GetAcceleratorForCommandId.

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 313 matching lines @@
           blink::WebContextMenuData::CheckableMenuItemEnabled;
     case IDC_WRITING_DIRECTION_LTR:
       return params_.writing_direction_left_to_right &
           blink::WebContextMenuData::CheckableMenuItemEnabled;
 
     default:
       return RenderViewContextMenu::IsCommandIdEnabled(command_id);
   }
 }
 
-bool RenderViewContextMenuMac::GetAcceleratorForCommandId(
-    int command_id,
-    ui::Accelerator* accelerator) const {
-  return false;
-}
-
 void RenderViewContextMenuMac::AppendPlatformEditableItems() {
   // OS X provides a contextual menu to set writing direction for BiDi
   // languages.
   // This functionality is exposed as a keyboard shortcut on Windows & Linux.
   AppendBidiSubMenu();
 }
 
 void RenderViewContextMenuMac::InitToolkitMenu() {
   if (params_.selection_text.empty())
     return;
@@ skipping 88 matching lines @@
   if (view)
     view->SpeakSelection();
 }
 
 void RenderViewContextMenuMac::StopSpeaking() {
   content::RenderWidgetHostView* view =
       GetRenderViewHost()->GetWidget()->GetView();
   if (view)
     view->StopSpeaking();
 }