ash/mash: Introduce a ShelfDelegate implementation for mash.

ash/mus/sysui/shelf_delegate_mus.h

Index: ash/mus/sysui/shelf_delegate_mus.h
diff --git a/ash/mus/sysui/shelf_delegate_mus.h b/ash/mus/sysui/shelf_delegate_mus.h
new file mode 100644
index 0000000000000000000000000000000000000000..73f27fba233a097645b2a468cc22f4545fabd087
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+++ b/ash/mus/sysui/shelf_delegate_mus.h
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+// Copyright 2016 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_MUS_SYSUI_SHELF_DELEGATE_MUS_H_
+#define ASH_MUS_SYSUI_SHELF_DELEGATE_MUS_H_
+
+#include <map>
+
+#include "ash/shelf/shelf_delegate.h"
+#include "mash/wm/public/interfaces/user_window_controller.mojom.h"
+#include "mojo/public/cpp/bindings/binding.h"
+
+namespace ash {
+
+class ShelfModel;
+
+namespace sysui {
+
+class ShelfDelegateMus : public ShelfDelegate,
+                         public mash::wm::mojom::UserWindowObserver {
+ public:
+  explicit ShelfDelegateMus(ShelfModel* model);
+  ~ShelfDelegateMus() override;
+
+ private:
+  // ShelfDelegate:
+  void OnShelfCreated(Shelf* shelf) override;
+  void OnShelfDestroyed(Shelf* shelf) override;
+  ShelfID GetShelfIDForAppID(const std::string& app_id) override;
+  bool HasShelfIDToAppIDMapping(ShelfID id) const override;
+  const std::string& GetAppIDForShelfID(ShelfID id) override;
+  void PinAppWithID(const std::string& app_id) override;
+  bool IsAppPinned(const std::string& app_id) override;
+  void UnpinAppWithID(const std::string& app_id) override;
+
+  // mash::wm::mojom::UserWindowObserver:
+  void OnUserWindowObserverAdded(
+      mojo::Array<mash::wm::mojom::UserWindowPtr> user_windows) override;
+  void OnUserWindowAdded(mash::wm::mojom::UserWindowPtr user_window) override;
+  void OnUserWindowRemoved(uint32_t window_id) override;
+  void OnUserWindowTitleChanged(uint32_t window_id,
+                                const mojo::String& window_title) override;
+  void OnUserWindowFocusChanged(uint32_t window_id, bool has_focus) override;
+
+  ShelfModel* model_;
+
+  mash::wm::mojom::UserWindowControllerPtr user_window_controller_;
+  mojo::Binding<mash::wm::mojom::UserWindowObserver> binding_;
+  std::map<uint32_t, ShelfID> window_id_to_shelf_id_;
+
+  DISALLOW_COPY_AND_ASSIGN(ShelfDelegateMus);
+};
+
+}  // namespace sysui
+}  // namespace ash
+
+#endif  // ASH_MUS_SYSUI_SHELF_DELEGATE_MUS_H_