Add ContextMenuSourceType to views::ContextMenuController::ShowContextMenuForView.

ash/system/web_notification/web_notification_tray.cc

 // 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.
 
 #include "ash/system/web_notification/web_notification_tray.h"
 
 #include "ash/root_window_controller.h"
 #include "ash/shelf/shelf_layout_manager.h"
 #include "ash/shell.h"
 #include "ash/shell_window_ids.h"
@@ skipping 296 matching lines @@
   scoped_ptr<ui::MenuModel> menu_model(
       message_center_tray_->CreateQuietModeMenu());
   quiet_mode_menu_runner_.reset(new views::MenuRunner(menu_model.get()));
   gfx::Point point;
   views::View::ConvertPointToScreen(this, &point);
   if (quiet_mode_menu_runner_->RunMenuAt(
       GetWidget(),
       NULL,
       gfx::Rect(point, bounds().size()),
       views::MenuItemView::BUBBLE_ABOVE,
+      ui::MENU_SOURCE_NONE,

[sky, 2013/06/17 16:08:19]

Why the none here? Looks like the caller has an event.

[varunjain, 2013/06/17 20:13:55]

Done.

       views::MenuRunner::HAS_MNEMONICS) == views::MenuRunner::MENU_DELETED)
     return;
 
   quiet_mode_menu_runner_.reset();
   GetShelfLayoutManager()->UpdateAutoHideState();
 }
 
 bool WebNotificationTray::ShouldShowQuietModeMenu(const ui::Event& event) {
   // TODO(mukai): Add keyboard event handler.
   if (!event.IsMouseEvent())
@@ skipping 189 matching lines @@
 
 message_center::MessagePopupBubble*
 WebNotificationTray::GetPopupBubbleForTest() {
   if (!popup_bubble())
     return NULL;
   return static_cast<message_center::MessagePopupBubble*>(
       popup_bubble()->bubble());
 }
 
 }  // namespace ash