override chrome:// URLs via extensions.

chrome/browser/tab_contents/navigation_controller.cc

 // Copyright (c) 2006-2008 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 "chrome/browser/tab_contents/navigation_controller.h"
 
 #include "app/resource_bundle.h"
 #include "base/file_util.h"
 #include "base/logging.h"
 #include "base/string_util.h"
@@ skipping 340 matching lines @@
   }
 }
 
 NavigationEntry* NavigationController::CreateNavigationEntry(
     const GURL& url, const GURL& referrer, PageTransition::Type transition) {
   // Allow the browser URL handler to rewrite the URL. This will, for example,
   // remove "view-source:" from the beginning of the URL to get the URL that
   // will actually be loaded. This real URL won't be shown to the user, just
   // used internally.
   GURL loaded_url(url);
-  BrowserURLHandler::RewriteURLIfNecessary(&loaded_url);
+  BrowserURLHandler::RewriteURLIfNecessary(&loaded_url, profile_);
 
   NavigationEntry* entry = new NavigationEntry(NULL, -1, loaded_url, referrer,
                                                string16(), transition);
   entry->set_virtual_url(url);
   entry->set_user_typed_url(url);
   if (url.SchemeIsFile()) {
     std::wstring languages = profile()->GetPrefs()->GetString(
         prefs::kAcceptLanguages);
     entry->set_title(WideToUTF16Hack(
         file_util::GetFilenameFromPath(net::FormatUrl(url, languages))));
@@ skipping 649 matching lines @@
       return i;
   }
   return -1;
 }
 
 NavigationEntry* NavigationController::GetTransientEntry() const {
   if (transient_entry_index_ == -1)
     return NULL;
   return entries_[transient_entry_index_].get();
 }