Upstream Chrome on iOS source code [10/11].

ios/chrome/browser/ui/webui/signin_internals_ui_ios.h

+// Copyright 2014 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 IOS_CHROME_BROWSER_UI_WEBUI_SIGNIN_INTERNALS_UI_IOS_H_
+#define IOS_CHROME_BROWSER_UI_WEBUI_SIGNIN_INTERNALS_UI_IOS_H_
+
+#include "base/macros.h"
+#include "base/values.h"
+#include "components/signin/core/browser/about_signin_internals.h"
+#include "ios/web/public/webui/web_ui_ios_controller.h"
+
+// The implementation for the chrome://signin-internals page.
+class SignInInternalsUIIOS : public web::WebUIIOSController,
+                             public AboutSigninInternals::Observer {
+ public:
+  explicit SignInInternalsUIIOS(web::WebUIIOS* web_ui);
+  ~SignInInternalsUIIOS() override;
+
+  // web::WebUIIOSController implementation.
+  bool OverrideHandleWebUIIOSMessage(const GURL& source_url,
+                                     const std::string& name,
+                                     const base::ListValue& args) override;
+
+  // AboutSigninInternals::Observer::OnSigninStateChanged implementation.
+  void OnSigninStateChanged(const base::DictionaryValue* info) override;
+
+  // Notification that the cookie accounts are ready to be displayed.
+  void OnCookieAccountsFetched(const base::DictionaryValue* info) override;
+
+ private:
+  DISALLOW_COPY_AND_ASSIGN(SignInInternalsUIIOS);
+};
+
+#endif  // IOS_CHROME_BROWSER_UI_WEBUI_SIGNIN_INTERNALS_UI_IOS_H_