| // 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_BROWSER_URL_HANDLER_IMPL_H_ | 
 | #define CONTENT_BROWSER_BROWSER_URL_HANDLER_IMPL_H_ | 
 |  | 
 | #include <vector> | 
 | #include <utility> | 
 |  | 
 | #include "base/gtest_prod_util.h" | 
 | #include "base/memory/singleton.h" | 
 | #include "content/public/browser/browser_url_handler.h" | 
 |  | 
 | class GURL; | 
 |  | 
 | namespace content { | 
 | class BrowserContext; | 
 |  | 
 | class CONTENT_EXPORT BrowserURLHandlerImpl : public BrowserURLHandler { | 
 |  public: | 
 |   // Returns the singleton instance. | 
 |   static BrowserURLHandlerImpl* GetInstance(); | 
 |  | 
 |   // BrowserURLHandler implementation: | 
 |   virtual void RewriteURLIfNecessary(GURL* url, | 
 |                                      BrowserContext* browser_context, | 
 |                                      bool* reverse_on_redirect) override; | 
 |   // Add the specified handler pair to the list of URL handlers. | 
 |   virtual void AddHandlerPair(URLHandler handler, | 
 |                               URLHandler reverse_handler) override; | 
 |  | 
 |   // Reverses the rewriting that was done for |original| using the new |url|. | 
 |   bool ReverseURLRewrite(GURL* url, const GURL& original, | 
 |                          BrowserContext* browser_context); | 
 |  | 
 |  private: | 
 |   // This object is a singleton: | 
 |   BrowserURLHandlerImpl(); | 
 |   virtual ~BrowserURLHandlerImpl(); | 
 |   friend struct DefaultSingletonTraits<BrowserURLHandlerImpl>; | 
 |  | 
 |   // The list of known URLHandlers, optionally with reverse-rewriters. | 
 |   typedef std::pair<URLHandler, URLHandler> HandlerPair; | 
 |   std::vector<HandlerPair> url_handlers_; | 
 |  | 
 |   FRIEND_TEST_ALL_PREFIXES(BrowserURLHandlerImplTest, BasicRewriteAndReverse); | 
 |   FRIEND_TEST_ALL_PREFIXES(BrowserURLHandlerImplTest, NullHandlerReverse); | 
 |  | 
 |   DISALLOW_COPY_AND_ASSIGN(BrowserURLHandlerImpl); | 
 | }; | 
 |  | 
 | }  // namespace content | 
 |  | 
 | #endif  // CONTENT_BROWSER_BROWSER_URL_HANDLER_IMPL_H_ |