Move ContextMenuParams struct from webkit/glue to content/public/common. The reasons are:

chrome/browser/tab_contents/render_view_context_menu_observer.cc

 // Copyright (c) 2011 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/tab_contents/render_view_context_menu_observer.h"
 
-void RenderViewContextMenuObserver::InitMenu(const ContextMenuParams& params) {
+void RenderViewContextMenuObserver::InitMenu(
+    const content::ContextMenuParams& params) {
 }
 
 bool RenderViewContextMenuObserver::IsCommandIdSupported(int command_id) {
   return false;
 }
 
 bool RenderViewContextMenuObserver::IsCommandIdChecked(int command_id) {
   return false;
 }
 
 bool RenderViewContextMenuObserver::IsCommandIdEnabled(int command_id) {
   return false;
 }
 
 void RenderViewContextMenuObserver::ExecuteCommand(int command_id) {
 }