Replace the GURL referrer field of OpenURLParams with a content::Referrer

chrome/browser/extensions/extension_webnavigation_api.cc

 // Copyright (c) 2011 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.
 
 // Implements the Chrome Extensions WebNavigation API.
 
 #include "chrome/browser/extensions/extension_webnavigation_api.h"
 
 #include "base/json/json_writer.h"
 #include "base/lazy_instance.h"
@@ skipping 570 matching lines @@
   DCHECK_EQ(navigation_state_.IsMainFrame(frame_id), is_main_frame);
   DispatchOnCompleted(tab_contents(),
                       validated_url,
                       is_main_frame,
                       frame_id);
 }
 
 void ExtensionWebNavigationTabObserver::DidOpenRequestedURL(
     TabContents* new_contents,
     const GURL& url,
-    const GURL& referrer,
+    const content::Referrer& referrer,
     WindowOpenDisposition disposition,
     content::PageTransition transition,
     int64 source_frame_id) {
   if (!navigation_state_.CanSendEvents(source_frame_id))
     return;
 
   // We only send the onCreatedNavigationTarget if we end up creating a new
   // window.
   if (disposition != SINGLETON_TAB &&
       disposition != NEW_FOREGROUND_TAB &&
@@ skipping 126 matching lines @@
         keys::kFrameIdKey,
         GetFrameId(navigation_state.IsMainFrame(*frame), *frame));
     frameDict->SetBoolean(
         keys::kErrorOccurredKey,
         navigation_state.GetErrorOccurredInFrame(*frame));
     resultList->Append(frameDict);
   }
   result_.reset(resultList);
   return true;
 }