Add ContextMenuSourceType to views::ContextMenuController::ShowContextMenuForView.

ui/base/ui_base_types.h

 // 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 UI_BASE_UI_BASE_TYPES_H_
 #define UI_BASE_UI_BASE_TYPES_H_
 
+#include "ui/base/ui_export.h"
+
 namespace ui {
 
+class Event;
+
 // Window "show" state.  These values are written to disk so should not be
 // changed.
 enum WindowShowState {
   // A default un-set state.
   SHOW_STATE_DEFAULT    = 0,
   SHOW_STATE_NORMAL     = 1,
   SHOW_STATE_MINIMIZED  = 2,
   SHOW_STATE_MAXIMIZED  = 3,
   SHOW_STATE_INACTIVE   = 4,  // Views only, not persisted.
   SHOW_STATE_FULLSCREEN = 5,
@@ skipping 10 matching lines @@
 
 // Specifies the type of modality applied to a window. Different modal
 // treatments may be handled differently by the window manager.
 enum ModalType {
   MODAL_TYPE_NONE   = 0,  // Window is not modal.
   MODAL_TYPE_WINDOW = 1,  // Window is modal to its transient parent.
   MODAL_TYPE_CHILD  = 2,  // Window is modal to a child of its transient parent.
   MODAL_TYPE_SYSTEM = 3   // Window is modal to all other windows.
 };
 
+// TODO(varunjain): Remove MENU_SOURCE_NONE (crbug.com/250964)
+enum MenuSourceType {
+  MENU_SOURCE_NONE            = 0,
+  MENU_SOURCE_MOUSE           = 1,
+  MENU_SOURCE_KEYBOARD        = 2,
+  MENU_SOURCE_TOUCH           = 3,
+  MENU_SOURCE_TOUCH_EDIT_MENU = 4,
+};
+
+UI_EXPORT MenuSourceType GetMenuSourceTypeForEvent(const ui::Event& event);
+
 }  // namespace ui
 
 #endif  // UI_BASE_UI_BASE_TYPES_H_