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

chrome/browser/tab_contents/render_view_context_menu_observer.h

 // 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.
 
 #ifndef CHROME_BROWSER_TAB_CONTENTS_RENDER_VIEW_CONTEXT_MENU_OBSERVER_H_
 #define CHROME_BROWSER_TAB_CONTENTS_RENDER_VIEW_CONTEXT_MENU_OBSERVER_H_
 #pragma once
 
+namespace content {
 struct ContextMenuParams;
+}
 
 // The interface used for implementing context-menu items. The following
 // instruction describe how to implement a context-menu item with this
 // interface.
 //
 // 1. Add command IDs for the context-menu items to 'chrome_command_ids.h'.
 //
 //   #define IDC_MY_COMMAND 99999
 //
 // 2. Add strings for the context-menu items to 'generated_sources.grd'.
 //
 //   <message name="IDS_MY_COMMAND" desc="...">
 //     My command
 //   </message>
 //
 // 3. Create a class that implements this interface. (It is a good idea to use
 // the RenderViewContextMenuDelegate interface to avoid accessing the
 // RenderViewContextMenu class directly.)
 //
 //  class MyMenuObserver : public RenderViewContextMenuObserver {
 //   public:
 //    MyMenuObserver(RenderViewContextMenuDelegate* d);
 //    ~MyMenuObserver();
 //
-//    virtual void InitMenu(const ContextMenuParams& params) OVERRIDE;
+//    virtual void InitMenu(const content::ContextMenuParams& params) OVERRIDE;
 //    virtual bool IsCommandIdSupported(int command_id) OVERRIDE;
 //    virtual bool IsCommandIdEnabled(int command_id) OVERRIDE;
 //    virtual void ExecuteCommand(int command_id) OVERRIDE;
 //
 //   private:
 //    RenderViewContextMenuDelgate* delegate_;
 //  }
 //
-//  void MyMenuObserver::InitMenu(const ContextMenuParams& params) {
+//  void MyMenuObserver::InitMenu(const content::ContextMenuParams& params) {
 //    delegate_->AddMenuItem(IDC_MY_COMMAND,...);
 //  }
 //
 //  bool MyMenuObserver::IsCommandIdSupported(int command_id) {
 //    return command_id == IDC_MY_COMMAND;
 //  }
 //
 //  bool MyMenuObserver::IsCommandIdEnabled(int command_id) {
 //    DCHECK(command_id == IDC_MY_COMMAND);
 //    return true;
@@ skipping 22 matching lines @@
 //  }
 //
 //
 class RenderViewContextMenuObserver {
  public:
   virtual ~RenderViewContextMenuObserver() {}
 
   // Called when the RenderViewContextMenu class initializes a context menu. We
   // usually call RenderViewContextMenuDelegate::AddMenuItem() to add menu items
   // in this function.
-  virtual void InitMenu(const ContextMenuParams& params);
+  virtual void InitMenu(const content::ContextMenuParams& params);
 
   // Called when the RenderViewContextMenu class asks whether an observer
   // listens for the specified command ID. If this function returns true, the
   // RenderViewContextMenu class calls IsCommandIdEnabled() or ExecuteCommand().
   virtual bool IsCommandIdSupported(int command_id);
 
   // Called when the RenderViewContextMenu class sets the initial status of the
   // specified context-menu item. If we need to enable or disable a context-menu
   // item while showing, use RenderViewContextMenuDelegate::UpdateMenuItem().
   virtual bool IsCommandIdChecked(int command_id);
   virtual bool IsCommandIdEnabled(int command_id);
 
   // Called when a user selects the specified context-menu item.
   virtual void ExecuteCommand(int command_id);
 };
 
 #endif  // CHROME_BROWSER_TAB_CONTENTS_RENDER_VIEW_CONTEXT_MENU_OBSERVER_H_