mash: Port mojo:ash_sysui's ContextMenuMus to mojo:ash.

ash/mus/context_menu_mus.h

Index: ash/mus/context_menu_mus.h
diff --git a/ash/sysui/context_menu_mus.h b/ash/mus/context_menu_mus.h
similarity index 84%
rename from ash/sysui/context_menu_mus.h
rename to ash/mus/context_menu_mus.h
index eb6674533d6aad2b423a5c7651dbf6951c3e813e..01f69f5b76c3877291d473addec2e778be0b89fe 100644
--- a/ash/sysui/context_menu_mus.h
+++ b/ash/mus/context_menu_mus.h
@@ -2,8 +2,8 @@
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
-#ifndef ASH_SYSUI_CONTEXT_MENU_MUS_H_
-#define ASH_SYSUI_CONTEXT_MENU_MUS_H_
+#ifndef ASH_MUS_CONTEXT_MENU_MUS_H_
+#define ASH_MUS_CONTEXT_MENU_MUS_H_
 
 #include "ash/common/shelf/shelf_alignment_menu.h"
 #include "base/macros.h"
@@ -14,7 +14,7 @@ namespace ash {
 class WmShelf;
 
 // Context menu for mash.
-// TODO(msw): Mimic logic in LauncherContextMenu.
+// TODO: Mimic logic in LauncherContextMenu. http://crbug.com/640693
 class ContextMenuMus : public ui::SimpleMenuModel,
                        public ui::SimpleMenuModel::Delegate {
  public:
@@ -41,4 +41,4 @@ class ContextMenuMus : public ui::SimpleMenuModel,
 
 }  // namespace ash
 
-#endif  // ASH_SYSUI_CONTEXT_MENU_MUS_H_
+#endif  // ASH_MUS_CONTEXT_MENU_MUS_H_