Refactor LauncherDelegate

ash/launcher/launcher_delegate_proxy.h

+// Copyright 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 ASH_LAUNCHER_LAUNCHER_DELEGATE_PROXY_H_
+#define ASH_LAUNCHER_LAUNCHER_DELEGATE_PROXY_H_
+
+#include "ash/launcher/launcher_delegate.h"
+#include "base/compiler_specific.h"
+
+namespace ash {
+class LauncherItemDelegate;
+
+namespace internal {
+
+// Proxy LauncherDelegate for multiple LauncherDelegates.
+class LauncherDelegateProxy : public ash::LauncherDelegate {
+ public:
+  LauncherDelegateProxy();
+  virtual ~LauncherDelegateProxy();
+
+  // LauncherDelegate overrides:
+  virtual ash::LauncherID GetIDByWindow(aura::Window* window) OVERRIDE;
+  virtual void OnLauncherCreated(Launcher* launcher) OVERRIDE;
+  virtual void OnLauncherDestroyed(Launcher* launcher) OVERRIDE;
+  virtual LauncherID GetLauncherIDForAppID(const std::string& app_id) OVERRIDE;
+  virtual void PinAppWithID(const std::string& app_id) OVERRIDE;
+  virtual bool IsAppPinned(const std::string& app_id) OVERRIDE;
+  virtual void UnpinAppsWithID(const std::string& app_id) OVERRIDE;
+  virtual LauncherItemDelegate* GetLauncherItemDelegate(
+      const LauncherItem& item) OVERRIDE;
+
+ private:
+  scoped_ptr<LauncherDelegate> chrome_launcher_delegate_;
+  scoped_ptr<LauncherDelegate> ash_launcher_delegate_;
+
+  DISALLOW_COPY_AND_ASSIGN(LauncherDelegateProxy);
+};
+
+}  // namespace internal
+}  // namespace ash
+
+#endif  // ASH_LAUNCHER_LAUNCHER_DELEGATE_PROXY_H_