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

content/public/browser/web_contents_delegate.cc

 // Copyright (c) 2012 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 "content/public/browser/web_contents_delegate.h"
 
 #include "base/compiler_specific.h"
 #include "base/logging.h"
 #include "base/memory/singleton.h"
 #include "content/public/browser/web_contents.h"
@@ skipping 45 matching lines @@
 }
 
 int WebContentsDelegate::GetExtraRenderViewHeight() const {
   return 0;
 }
 
 bool WebContentsDelegate::CanDownload(WebContents* source, int request_id) {
   return true;
 }
 
-bool WebContentsDelegate::HandleContextMenu(const ContextMenuParams& params) {
+bool WebContentsDelegate::HandleContextMenu(
+    const content::ContextMenuParams& params) {
   return false;
 }
 
 bool WebContentsDelegate::ExecuteContextMenuCommand(int command) {
   return false;
 }
 
 void WebContentsDelegate::ViewSourceForTab(WebContents* source,
                                            const GURL& page_url) {
   // Fall back implementation based entirely on the view-source scheme.
@@ skipping 73 matching lines @@
   DCHECK(attached_contents_.find(web_contents) == attached_contents_.end());
   attached_contents_.insert(web_contents);
 }
 
 void WebContentsDelegate::Detach(WebContents* web_contents) {
   DCHECK(attached_contents_.find(web_contents) != attached_contents_.end());
   attached_contents_.erase(web_contents);
 }
 
 }  // namespace content