Adds WindowManagerManager to mus

components/mus/ws/window_manager_factory_registry.h

Index: components/mus/ws/window_manager_factory_registry.h
diff --git a/components/mus/ws/window_manager_factory_registry.h b/components/mus/ws/window_manager_factory_registry.h
new file mode 100644
index 0000000000000000000000000000000000000000..519257deee3267f974fb8ba376a93b89c3d00043
--- /dev/null
+++ b/components/mus/ws/window_manager_factory_registry.h
@@ -0,0 +1,52 @@
+// 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 COMPONENTS_MUS_WS_WINDOW_MANAGER_FACTORY_REGISTRY_H_
+#define COMPONENTS_MUS_WS_WINDOW_MANAGER_FACTORY_REGISTRY_H_
+
+#include <stdint.h>
+
+#include <vector>
+
+#include "base/macros.h"
+#include "base/memory/scoped_ptr.h"
+#include "components/mus/public/interfaces/window_manager_factory.mojom.h"
+
+namespace mus {
+namespace ws {
+
+class ConnectionManager;
+class WindowManagerFactoryService;
+
+// WindowManagerFactoryRegistry tracks the set of registered
+// WindowManagerFactoryServices.
+class WindowManagerFactoryRegistry {
+ public:
+  explicit WindowManagerFactoryRegistry(ConnectionManager* connection_manager);
+  ~WindowManagerFactoryRegistry();
+
+  void Register(
+      uint32_t user_id,
+      mojo::InterfaceRequest<mojom::WindowManagerFactoryService> request);
+
+  std::vector<WindowManagerFactoryService*> GetServices();
+
+ private:
+  friend class WindowManagerFactoryService;
+
+  void OnWindowManagerFactoryConnectionLost(
+      WindowManagerFactoryService* service);
+  void OnWindowManagerFactorySet();
+
+  ConnectionManager* connection_manager_;
+
+  std::vector<scoped_ptr<WindowManagerFactoryService>> services_;
+
+  DISALLOW_COPY_AND_ASSIGN(WindowManagerFactoryRegistry);
+};
+
+}  // namespace ws
+}  // namespace mus
+
+#endif  // COMPONENTS_MUS_WS_WINDOW_MANAGER_FACTORY_REGISTRY_H_