Implement a ResourceThrottle for URL overriding in Chrome on Android.

content/browser/web_contents/web_contents_impl.h

 // 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.
 
 #ifndef CONTENT_BROWSER_WEB_CONTENTS_WEB_CONTENTS_IMPL_H_
 #define CONTENT_BROWSER_WEB_CONTENTS_WEB_CONTENTS_IMPL_H_
 #pragma once
 
 #include <map>
 #include <string>
@@ skipping 293 matching lines @@
   virtual void RequestTransferURL(
       const GURL& url,
       const content::Referrer& referrer,
       WindowOpenDisposition disposition,
       int64 source_frame_id,
       const content::GlobalRequestID& transferred_global_request_id) OVERRIDE;
   virtual void RouteCloseEvent(content::RenderViewHost* rvh) OVERRIDE;
   virtual void RouteMessageEvent(
       content::RenderViewHost* rvh,
       const ViewMsg_PostMessage_Params& params) OVERRIDE;
+  virtual bool ShouldIgnoreNavigation(
+      content::RenderViewHost* rvh,
+      const GURL& url,
+      const content::Referrer& referrer,
+      bool is_content_initiated) OVERRIDE;
   virtual void RunJavaScriptMessage(content::RenderViewHost* rvh,
                                     const string16& message,
                                     const string16& default_prompt,
                                     const GURL& frame_url,
                                     ui::JavascriptMessageType type,
                                     IPC::Message* reply_msg,
                                     bool* did_suppress_message) OVERRIDE;
   virtual void RunBeforeUnloadConfirm(content::RenderViewHost* rvh,
                                       const string16& message,
                                       bool is_reload,
@@ skipping 390 matching lines @@
   // Type of view this WebContents is displaying.
   content::ViewType view_type_;
 
   // Color chooser that was opened by this tab.
   content::ColorChooser* color_chooser_;
 
   DISALLOW_COPY_AND_ASSIGN(WebContentsImpl);
 };
 
 #endif  // CONTENT_BROWSER_WEB_CONTENTS_WEB_CONTENTS_IMPL_H_