Standardize usage of virtual/override/final specifiers in components/.

components/renderer_context_menu/render_view_context_menu_base.h

 // 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.
 
 #ifndef COMPONENTS_RENDERER_CONTEXT_MENU_RENDER_VIEW_CONTEXT_MENU_BASE_H_
 #define COMPONENTS_RENDERER_CONTEXT_MENU_RENDER_VIEW_CONTEXT_MENU_BASE_H_
 
 #include <map>
 #include <string>
 
@@ skipping 122 matching lines @@
   virtual void RecordUsedItem(int id) = 0;
 
   // Increments histogram value for visible context menu item specified by |id|.
   virtual void RecordShownItem(int id) = 0;
 
 #if defined(ENABLE_PLUGINS)
   virtual void HandleAuthorizeAllPlugins() = 0;
 #endif
 
   // Returns the accelerator for given |command_id|.
-  virtual bool GetAcceleratorForCommandId(
-      int command_id,
-      ui::Accelerator* accelerator) = 0;
+  bool GetAcceleratorForCommandId(int command_id,
+                                  ui::Accelerator* accelerator) override = 0;
 
   // Subclasses should send notification.
   virtual void NotifyMenuShown() = 0;
   virtual void NotifyURLOpened(const GURL& url,
                                content::WebContents* new_contents) = 0;
 
   // TODO(oshima): Remove this.
   virtual void AppendPlatformEditableItems() {}
 
   content::RenderFrameHost* GetRenderFrameHost();
@@ skipping 29 matching lines @@
 
   // The RenderFrameHost's IDs.
   int render_process_id_;
 
   scoped_ptr<ToolkitDelegate> toolkit_delegate_;
 
   DISALLOW_COPY_AND_ASSIGN(RenderViewContextMenuBase);
 };
 
 #endif  // COMPONENTS_RENDERER_CONTEXT_MENU_RENDER_VIEW_CONTEXT_MENU_BASE_H_