Implement Desktop Media Picker (Mac version) for Desktop Capture API

chrome/browser/ui/cocoa/media_picker/desktop_media_picker_cocoa.h

+// Copyright (c) 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_COCOA_MEDIA_PICKER_DESKTOP_MEDIA_PICKER_COCOA_H_
+#define CHROME_BROWSER_UI_COCOA_MEDIA_PICKER_DESKTOP_MEDIA_PICKER_COCOA_H_
+
+#import "base/mac/scoped_nsobject.h"
+#include "chrome/browser/media/desktop_media_picker.h"
+
+@class DesktopMediaPickerController;
+
+// Cocoa's DesktopMediaPicker implementation.
+class DesktopMediaPickerCocoa : public DesktopMediaPicker {
+ public:
+  DesktopMediaPickerCocoa();
+  virtual ~DesktopMediaPickerCocoa();
+
+  // Overridden from DesktopMediaPicker:
+  virtual void Show(gfx::NativeWindow context,
+                    gfx::NativeWindow parent,
+                    const string16& app_name,
+                    scoped_ptr<DesktopMediaPickerModel> model,
+                    const DoneCallback& done_callback) OVERRIDE;
+
+ private:
+  base::scoped_nsobject<DesktopMediaPickerController> controller_;
+};
+
+#endif  // CHROME_BROWSER_UI_COCOA_MEDIA_PICKER_DESKTOP_MEDIA_PICKER_COCOA_H_