Supprot V2 app: step1

athena/content/public/dialogs.h

Index: athena/content/public/dialogs.h
diff --git a/athena/content/public/dialogs.h b/athena/content/public/dialogs.h
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+++ b/athena/content/public/dialogs.h
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+// 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 ATHENA_CONTENT_PUBLIC_DIALOGS_H_
+#define ATHENA_CONTENT_PUBLIC_DIALOGS_H_
+
+#include <vector>
+
+#include "third_party/skia/include/core/SkColor.h"
+
+namespace content {
+class ColorChooser;
+class JavaScriptDialogManager;
+class WebContents;
+struct ColorSuggestion;
+struct FileChooserParams;
+}
+
+namespace athena {
+
+// Open Color chooser window.
+content::ColorChooser* OpenColorChooser(
+    content::WebContents* web_contents,
+    SkColor color,
+    const std::vector<content::ColorSuggestion>& suggestions);
+
+// Open FileChooser window.
+void OpenFileChooser(content::WebContents* web_contents,
+                     const content::FileChooserParams& params);
+
+}  // namespace athena
+
+#endif  //  ATHENA_CONTENT_PUBLIC_DIALOGS_H_