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

chrome/browser/ui/cocoa/media_picker/desktop_media_picker_item.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_ITEM_H_
+#define CHROME_BROWSER_UI_COCOA_MEDIA_PICKER_DESKTOP_MEDIA_PICKER_ITEM_H_
+
+#import <AppKit/AppKit.h>
+
+#import "base/mac/scoped_nsobject.h"
+#include "chrome/browser/media/desktop_media_picker_model.h"
+
+// Stores the data representing a |DesktopMediaPicker| source for displaying in
+// a |IKImageBrowserView|. Implements the |IKImageBrowserItem| informal
+// protocol.
+@interface DesktopMediaPickerItem : NSObject {
+ @private
+  content::DesktopMediaID sourceID_;
+  base::scoped_nsobject<NSString> imageUID_;
+  base::scoped_nsobject<NSString> imageTitle_;
+  base::scoped_nsobject<NSImage> image_;
+  NSUInteger imageVersion_;
+}
+
+// Designated initializer.
+// |sourceID| is the corresponding source's ID as provided by the model.
+// |imageUID| is a unique number in the context of the |IKImageBrowserView|
+// instance.
+// |imageTitle| is the source's name to be used as the label in
+// |IKImageBrowserView|.
+- (id)initWithSourceId:(content::DesktopMediaID)sourceID
+              imageUID:(int)imageUID
+            imageTitle:(NSString*)imageTitle;
+
+// Returns the source's ID.
+- (content::DesktopMediaID)sourceID;
+
+// Sets the image of the item to be displayed in |IKImageBrowserView|.
+- (void)setImageRepresentation:(NSImage*)image;
+
+// Sets the label of the item to be displayed in |IKImageBrowserView|.
+- (void)setImageTitle:(NSString*)imageTitle;
+
+@end
+
+#endif  // CHROME_BROWSER_UI_COCOA_MEDIA_PICKER_DESKTOP_MEDIA_PICKER_ITEM_H_