Upstream Chrome on iOS source code [4/11].

ios/chrome/browser/ui/dialogs/java_script_dialog_presenter_impl.h

+// Copyright 2016 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_DIALOGS_JAVA_SCRIPT_DIALOG_PRESENTER_IMPL_H_
+#define IOS_CHROME_BROWSER_UI_DIALOGS_JAVA_SCRIPT_DIALOG_PRESENTER_IMPL_H_
+
+#import "base/ios/weak_nsobject.h"
+#import "base/mac/scoped_nsobject.h"
+#include "ios/web/public/java_script_dialog_presenter.h"
+
+@class AlertCoordinator;
+@class DialogPresenter;
+
+class JavaScriptDialogPresenterImpl : public web::JavaScriptDialogPresenter {
+ public:
+  explicit JavaScriptDialogPresenterImpl(DialogPresenter* dialogPresenter);
+  ~JavaScriptDialogPresenterImpl();
+
+  void RunJavaScriptDialog(web::WebState* web_state,
+                           const GURL& origin_url,
+                           web::JavaScriptDialogType dialog_type,
+                           NSString* message_text,
+                           NSString* default_prompt_text,
+                           const web::DialogClosedCallback& callback) override;
+
+  void CancelDialogs(web::WebState* web_state) override;
+
+ private:
+  // The underlying DialogPresenter handling the dialog UI.
+  base::scoped_nsobject<DialogPresenter> dialog_presenter_;
+
+  DISALLOW_COPY_AND_ASSIGN(JavaScriptDialogPresenterImpl);
+};
+
+#endif  // IOS_CHROME_BROWSER_UI_DIALOGS_JAVA_SCRIPT_DIALOG_PRESENTER_IMPL_H_