Remove some pass-thrus on RootWindow API in favor of exposing the RootWindowHost again.

chrome/browser/first_run/try_chrome_dialog_view.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/first_run/try_chrome_dialog_view.h"
 
 #include <shellapi.h>
 
 #include "base/logging.h"
 #include "base/message_loop/message_loop.h"
@@ skipping 265 matching lines @@
   }
 
   gfx::Rect pos = ComputeWindowPosition(preferred.width(), preferred.height(),
                                         base::i18n::IsRTL());
   popup_->SetBounds(pos);
 
   // Carve the toast shape into the window.
   HWND toast_window;
 #if defined(USE_AURA)
   toast_window =
-      popup_->GetNativeView()->GetDispatcher()->GetAcceleratedWidget();
+      popup_->GetNativeView()->GetDispatcher()->host()->GetAcceleratedWidget();
 #else
   toast_window = popup_->GetNativeView();
 #endif
   SetToastRegion(toast_window, preferred.width(), preferred.height());
 
   // Time to show the window in a modal loop.
   popup_->Show();
   if (!listener.is_null())
     listener.Run(popup_->GetNativeView());
   base::MessageLoop::current()->Run();
@@ skipping 68 matching lines @@
         result_ = TRY_CHROME_AS_DEFAULT;
   }
 
   popup_->Close();
   base::MessageLoop::current()->Quit();
 }
 
 void TryChromeDialogView::LinkClicked(views::Link* source, int event_flags) {
   ::ShellExecuteW(NULL, L"open", kHelpCenterUrl, NULL, NULL, SW_SHOW);
 }