Moves accelerator registration to WindowManager

mash/wm/root_windows_observer.h

+// 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 MASH_WM_ROOT_WINDOW_OBSERVERS_H_
+#define MASH_WM_ROOT_WINDOW_OBSERVERS_H_
+
+namespace mash {
+namespace wm {
+
+class RootWindowController;
+
+class RootWindowsObserver {
+ public:
+  // Called once a new display has been created and the root Window obtained.
+  virtual void OnRootWindowControllerAdded(
+      RootWindowController* controller) = 0;
+
+ protected:
+  ~RootWindowsObserver() {}
+};
+
+}  // namespace wm
+}  // namespace mash
+
+#endif  // MASH_WM_ROOT_WINDOW_OBSERVERS_H_