Move URL fixup to a preliminary phase that doesn't affect virtual URLs.

content/public/browser/browser_url_handler.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_PUBLIC_BROWSER_BROWSER_URL_HANDLER_H_
 #define CONTENT_PUBLIC_BROWSER_BROWSER_URL_HANDLER_H_
 
 #include "content/common/content_export.h"
 
 class GURL;
@@ skipping 25 matching lines @@
   static  BrowserURLHandler* GetInstance();
 
   // RewriteURLIfNecessary gives all registered URLHandlers a shot at processing
   // the given URL, and modifies it in place.
   // If the original URL needs to be adjusted if the modified URL is redirected,
   // this function sets |reverse_on_redirect| to true.
   virtual void RewriteURLIfNecessary(GURL* url,
                                      BrowserContext* browser_context,
                                      bool* reverse_on_redirect) = 0;
 
+  // Set the specified handler as a preliminary fixup phase to be done before
+  // rewriting.  This allows minor cleanup for the URL without having it affect
+  // the virtual URL.
+  virtual void SetFixupHandler(URLHandler handler) = 0;
+
   // Add the specified handler pair to the list of URL handlers.
   //
   // Note that normally, the reverse handler is only used if the modified URL is
   // not modified, e.g., by adding a hash fragment. To support this behavior,
   // register the forward and reverse handlers separately, each with a
   // null_handler() for the opposite direction.
   virtual void AddHandlerPair(URLHandler handler,
                               URLHandler reverse_handler) = 0;
 
  protected:
   virtual ~BrowserURLHandler() {}
 };
 
 }  // namespace content
 
 #endif  // CONTENT_PUBLIC_BROWSER_BROWSER_URL_HANDLER_H_