Moving extension code out of "components/" to avoid layering violations.

chrome/browser/renderer_context_menu/render_view_context_menu.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 CHROME_BROWSER_RENDERER_CONTEXT_MENU_RENDER_VIEW_CONTEXT_MENU_H_
 #define CHROME_BROWSER_RENDERER_CONTEXT_MENU_RENDER_VIEW_CONTEXT_MENU_H_
 
 #include <map>
 #include <string>
 
@@ skipping 158 matching lines @@
   scoped_ptr<SpellingMenuObserver> spelling_menu_observer_;
 
   // An observer that handles a 'spell-checker options' submenu.
   scoped_ptr<SpellCheckerSubMenuObserver> spellchecker_submenu_observer_;
 
 #if defined(ENABLE_PRINT_PREVIEW)
   // An observer that disables menu items when print preview is active.
   scoped_ptr<PrintPreviewContextMenuObserver> print_preview_menu_observer_;
 #endif
 
+  // In the case of a MimeHandlerView this will point to the WebContents that
+  // embeds the MimeHandlerViewGuest. Otherwise this will be the same as
+  // |source_web_contents_|.
+  content::WebContents* embedder_web_contents_;
+
   DISALLOW_COPY_AND_ASSIGN(RenderViewContextMenu);
 };
 
 #endif  // CHROME_BROWSER_RENDERER_CONTEXT_MENU_RENDER_VIEW_CONTEXT_MENU_H_