Eliminate InfoBarTabHelper. Make InfoBarService a concrete class.

chrome/browser/ui/views/external_tab_container_win.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/views/external_tab_container_win.h"
 
 #include <atlbase.h>
 #include <atlapp.h>
 #include <atlconv.h>
 #include <atlmisc.h>
@@ skipping 245 matching lines @@
 
   content::RenderViewHost::AddCreatedCallback(rvh_callback_);
   content::WebContentsObserver::Observe(existing_contents);
 
   BrowserTabContents::AttachTabHelpers(existing_contents);
   web_contents_.reset(existing_contents);
 
   if (!infobars_enabled) {
     InfoBarService* infobar_service =
         InfoBarService::FromWebContents(existing_contents);
-    infobar_service->SetInfoBarsEnabled(false);
+    infobar_service->set_infobars_enabled(false);
   }
 
   // Start loading initial URL
   if (!initial_url.is_empty()) {
     // Navigate out of context since we don't have a 'tab_handle_' yet.
     MessageLoop::current()->PostTask(
         FROM_HERE,
         base::Bind(&ExternalTabContainerWin::Navigate,
                    weak_factory_.GetWeakPtr(),
                    initial_url, referrer));
@@ skipping 1018 matching lines @@
   if (params.disposition == CURRENT_TAB) {
     DCHECK(route_all_top_level_navigations_);
     forward_params.disposition = NEW_FOREGROUND_TAB;
   }
   WebContents* new_contents =
       ExternalTabContainerWin::OpenURLFromTab(source, forward_params);
   // support only one navigation for a dummy tab before it is killed.
   widget_->CloseNow();
   return new_contents;
 }