Add support for Ash to Notifications

chrome/browser/ui/views/ash/balloon_view_ash.h

+// Copyright (c) 2012 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_VIEWS_ASH_BALLOON_VIEW_ASH_H_
+#define CHROME_BROWSER_UI_VIEWS_ASH_BALLOON_VIEW_ASH_H_
+#pragma once
+
+#include "chrome/browser/notifications/balloon.h"
+
+// On Ash, a "BalloonView" is just a wrapper for ash notification entries.
+class BalloonViewAsh : public BalloonView {
+ public:
+  explicit BalloonViewAsh(BalloonCollection* collection);
+  virtual ~BalloonViewAsh();
+
+  // BalloonView interface.
+  virtual void Show(Balloon* balloon) OVERRIDE;
+  virtual void Update() OVERRIDE;
+  virtual void RepositionToBalloon() OVERRIDE;
+  virtual void Close(bool by_user) OVERRIDE;
+  virtual gfx::Size GetSize() const OVERRIDE;
+  virtual BalloonHost* GetHost() const OVERRIDE;
+
+ private:
+  class IconFetcher;
+
+  void FetchIcon(const Notification& notification);
+  std::string GetExtensionId(Balloon* balloon);
+
+  BalloonCollection* collection_;
+  Balloon* balloon_;
+  scoped_ptr<IconFetcher> icon_fetcher_;
+
+  DISALLOW_COPY_AND_ASSIGN(BalloonViewAsh);
+};
+
+#endif  // CHROME_BROWSER_UI_VIEWS_ASH_BALLOON_VIEW_ASH_H_