Rework arguments of HistoryService::AddPage()

content/public/browser/web_contents_delegate.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_WEB_CONTENTS_DELEGATE_H_
 #define CONTENT_PUBLIC_BROWSER_WEB_CONTENTS_DELEGATE_H_
 
 #include <set>
 #include <string>
 
@@ skipping 32 matching lines @@
 struct SSLStatus;
 }
 
 namespace gfx {
 class Point;
 class Rect;
 class Size;
 }
 
 namespace history {
-class HistoryAddPageArgs;
+struct HistoryAddPageArgs;
 }
 
 namespace webkit_glue {
 struct WebIntentData;
 struct WebIntentServiceData;
 }
 
 namespace WebKit {
 class WebLayer;
 }
@@ skipping 402 matching lines @@
   // Called when |this| is no longer the WebContentsDelegate for |source|.
   void Detach(WebContents* source);
 
   // The WebContents that this is currently a delegate for.
   std::set<WebContents*> attached_contents_;
 };
 
 }  // namespace content
 
 #endif  // CONTENT_PUBLIC_BROWSER_WEB_CONTENTS_DELEGATE_H_