Moves NewWindowDelegate to ash/common

ash/mus/new_window_delegate_mus.h

Index: ash/mus/new_window_delegate_mus.h
diff --git a/ash/mus/new_window_delegate_mus.h b/ash/mus/new_window_delegate_mus.h
new file mode 100644
index 0000000000000000000000000000000000000000..57dfb0223cefeb7520ae5cf5fb78465bac9ae736
--- /dev/null
+++ b/ash/mus/new_window_delegate_mus.h
@@ -0,0 +1,37 @@
+// 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_NEW_WINDOW_DELEGATE_MUS_H_
+#define ASH_MUS_NEW_WINDOW_DELEGATE_MUS_H_
+
+#include "ash/common/new_window_delegate.h"
+#include "base/macros.h"
+
+namespace ash {
+namespace mus {
+
+class NewWindowDelegateMus : public NewWindowDelegate {
+ public:
+  NewWindowDelegateMus();
+  ~NewWindowDelegateMus() override;
+
+  // NewWindowDelegate:
+  void NewTab() override;
+  void NewWindow(bool incognito) override;
+  void OpenFileManager() override;
+  void OpenCrosh() override;
+  void OpenGetHelp() override;
+  void RestoreTab() override;
+  void ShowKeyboardOverlay() override;
+  void ShowTaskManager() override;
+  void OpenFeedbackPage() override;
+
+ private:
+  DISALLOW_COPY_AND_ASSIGN(NewWindowDelegateMus);
+};
+
+}  // namespace mus
+}  // namespace ash
+
+#endif  // ASH_MUS_NEW_WINDOW_DELEGATE_MUS_H_