Reland r242290, r241609, r242134.

chrome/browser/ui/webui/inline_login_ui.h

Index: chrome/browser/ui/webui/inline_login_ui.h
diff --git a/chrome/browser/ui/webui/inline_login_ui.h b/chrome/browser/ui/webui/inline_login_ui.h
deleted file mode 100644
index fc8e22d6ef64ee82a2aca4f307fef5ef0a3e3816..0000000000000000000000000000000000000000
--- a/chrome/browser/ui/webui/inline_login_ui.h
+++ /dev/null
@@ -1,26 +0,0 @@
-// 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 CHROME_BROWSER_UI_WEBUI_INLINE_LOGIN_UI_H_
-#define CHROME_BROWSER_UI_WEBUI_INLINE_LOGIN_UI_H_
-
-#include "chrome/browser/extensions/signin/scoped_gaia_auth_extension.h"
-#include "ui/web_dialogs/web_dialog_ui.h"
-
-// Inline login WebUI in various signin flows for ChromeOS and Chrome desktop.
-// The authentication is carried out via the host gaia_auth extension. Upon
-// success, the profile of the webui should be populated with proper cookies.
-// Then this UI would fetch the oauth2 tokens using the cookies.
-class InlineLoginUI : public ui::WebDialogUI {
- public:
-  explicit InlineLoginUI(content::WebUI* web_ui);
-  virtual ~InlineLoginUI();
-
- private:
-  ScopedGaiaAuthExtension auth_extension_;
-
-  DISALLOW_COPY_AND_ASSIGN(InlineLoginUI);
-};
-
-#endif  // CHROME_BROWSER_UI_WEBUI_INLINE_LOGIN_UI_H_