Extract minimal RenderViewHost interface for embedders, leaving

chrome/browser/ui/webui/signin/login_ui_service.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/webui/signin/login_ui_service.h"
 
 #include "chrome/browser/profiles/profile.h"
 #include "chrome/browser/ui/browser.h"
 #include "chrome/browser/ui/browser_list.h"
 #include "chrome/browser/ui/browser_window.h"
@@ skipping 18 matching lines @@
 void LoginUIService::LoginUIClosed(content::WebUI* ui) {
   if (current_login_ui() == ui)
     ui_ = NULL;
 }
 
 void LoginUIService::FocusLoginUI() {
   if (!ui_) {
     NOTREACHED() << "FocusLoginUI() called with no active login UI";
     return;
   }
-  ui_->GetWebContents()->GetRenderViewHost()->delegate()->Activate();
+  ui_->GetWebContents()->GetRenderViewHost()->GetDelegate()->Activate();
 }
 
 void LoginUIService::ShowLoginUI() {
   if (ui_) {
     // We already have active login UI - make it visible.
     FocusLoginUI();
     return;
   }
 
   // Need to navigate to the settings page and display the UI.
   if (profile_) {
     Browser* browser = BrowserList::GetLastActiveWithProfile(profile_);
     if (!browser) {
       browser = Browser::Create(profile_);
       browser->ShowOptionsTab(chrome::kSyncSetupSubPage);
       browser->window()->Show();
     } else {
       browser->ShowOptionsTab(chrome::kSyncSetupSubPage);
     }
   }
 }