Revert 179302

ui/app_list/views/signin_view.h

-// Copyright 2013 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 UI_APP_LIST_VIEWS_SIGNIN_VIEW_H_
-#define UI_APP_LIST_VIEWS_SIGNIN_VIEW_H_
-
-#include "base/basictypes.h"
-#include "base/compiler_specific.h"
-#include "base/memory/scoped_ptr.h"
-#include "ui/views/view.h"
-
-namespace content {
-class WebContents;
-}
-
-namespace views {
-class WebView;
-}
-
-namespace app_list {
-
-class SigninDelegate;
-
-// The SigninView is shown in the app list when the user needs to sign in.
-// It just shows a webview, which is prepared for signin by the signin delegate.
-class SigninView : public views::View {
- public:
-  SigninView(SigninDelegate* delegate);
-  virtual ~SigninView();
-
-  // Show the signin UI and begins the signin process.
-  void BeginSignin();
-
- private:
-  scoped_ptr<content::WebContents> web_contents_;
-  views::WebView* web_view_;
-
-  SigninDelegate* delegate_;
-
-  DISALLOW_COPY_AND_ASSIGN(SigninView);
-};
-
-}  // namespace app_list
-
-#endif  // UI_APP_LIST_VIEWS_SIGNIN_VIEW_H_