Fixes the context menu for a notification.

ui/message_center/views/message_view_context_menu_controller.cc

+// Copyright 2013 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 "ui/message_center/views/message_view_context_menu_controller.h"
+
+#include "ui/base/models/menu_model.h"
+#include "ui/message_center/views/message_center_controller.h"
+#include "ui/message_center/views/message_view.h"
+#include "ui/views/controls/menu/menu_runner.h"
+#include "ui/views/widget/widget.h"
+
+namespace message_center {
+
+MessageViewContextMenuController::MessageViewContextMenuController(
+    MessageCenterController* controller)
+    : controller_(controller) {
+}
+
+MessageViewContextMenuController::~MessageViewContextMenuController() {
+}
+
+void MessageViewContextMenuController::ShowContextMenuForView(
+    views::View* source,
+    const gfx::Point& point,
+    ui::MenuSourceType source_type) {
+  // Assumes that the target view has to be MessageView.
+  MessageView* message_view = static_cast<MessageView*>(source);
+  scoped_ptr<ui::MenuModel> menu_model(controller_->CreateMenuModel(
+      message_view->notifier_id(), message_view->display_source()));
+
+  if (!menu_model || menu_model->GetItemCount() == 0)
+    return;
+
+  views::MenuRunner menu_runner(menu_model.get());
+
+  ignore_result(menu_runner.RunMenuAt(
+      source->GetWidget()->GetTopLevelWidget(),
+      NULL,
+      gfx::Rect(point, gfx::Size()),
+      views::MenuItemView::TOPRIGHT,
+      source_type,
+      views::MenuRunner::HAS_MNEMONICS));
+}
+
+}  // namespace message_center