chrome: Cleanup class/struct forward declarations

chrome/browser/ui/login/login_handler.cc

 // 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.
 
 #include "chrome/browser/ui/login/login_handler.h"
 
 #include <string>
 #include <vector>
 
 #include "base/bind.h"
@@ skipping 38 matching lines @@
 #include "extensions/browser/view_type_utils.h"
 #endif
 
 #if !defined(OS_ANDROID)
 #include "chrome/browser/ui/blocked_content/app_modal_dialog_helper.h"
 #endif
 
 using autofill::PasswordForm;
 using content::BrowserThread;
 using content::NavigationController;
-using content::RenderViewHost;
-using content::RenderViewHostDelegate;
 using content::ResourceDispatcherHost;
 using content::ResourceRequestInfo;
 using content::WebContents;
 
 class LoginHandlerImpl;
 
 namespace {
 
 // Auth prompt types for UMA. Do not reorder or delete entries; only add to the
 // end.
@@ skipping 589 matching lines @@
   bool is_main_frame =
       (request->load_flags() & net::LOAD_MAIN_FRAME_DEPRECATED) != 0;
   LoginHandler* handler = LoginHandler::Create(auth_info, request);
   BrowserThread::PostTask(
       BrowserThread::UI, FROM_HERE,
       base::Bind(&LoginHandler::LoginDialogCallback, request->url(),
                  base::RetainedRef(auth_info), base::RetainedRef(handler),
                  is_main_frame));
   return handler;
 }