Replace content::ContextMenuSourceType with ui::MenuSourceType.

content/public/common/context_menu_source_type.h

Index: content/public/common/context_menu_source_type.h
diff --git a/content/public/common/context_menu_source_type.h b/content/public/common/context_menu_source_type.h
deleted file mode 100644
index 53e6a607f5bd7bce2041033a9bdb91f377115a0b..0000000000000000000000000000000000000000
--- a/content/public/common/context_menu_source_type.h
+++ /dev/null
@@ -1,22 +0,0 @@
-// Copyright (c) 2012 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 CONTENT_PUBLIC_COMMON_CONTEXT_MENU_SOURCE_TYPE_H_
-#define CONTENT_PUBLIC_COMMON_CONTEXT_MENU_SOURCE_TYPE_H_
-
-namespace content {
-
-enum ContextMenuSourceType {
-  CONTEXT_MENU_SOURCE_MOUSE,
-  CONTEXT_MENU_SOURCE_KEYBOARD,
-  CONTEXT_MENU_SOURCE_TOUCH,
-
-  // This source type is used when the context menu is summoned by pressing the
-  // context menu button in the touch editing menu.
-  CONTEXT_MENU_SOURCE_TOUCH_EDIT_MENU,
-};
-
-}  // namespace content
-
-#endif  // CONTENT_PUBLIC_COMMON_CONTEXT_MENU_SOURCE_TYPE_H_