views: Split DownloadShelfContextMenuWin out to its own header file.

chrome/browser/ui/views/download/download_shelf_context_menu_view.cc

+// Copyright (c) 2011 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 "chrome/browser/ui/views/download/download_shelf_context_menu_view.h"
+
+#include "base/i18n/rtl.h"
+#include "base/logging.h"
+#include "chrome/browser/download/download_item.h"
+#include "chrome/browser/download/download_item_model.h"
+#include "ui/gfx/point.h"
+#include "views/controls/menu/menu_2.h"
+
+DownloadShelfContextMenuView::DownloadShelfContextMenuView(
+    BaseDownloadItemModel* model)
+    : DownloadShelfContextMenu(model) {
+    DCHECK(model);
+}
+
+DownloadShelfContextMenuView::~DownloadShelfContextMenuView() {}
+
+void DownloadShelfContextMenuView::Run(const gfx::Point& point) {
+  if (download_item()->IsComplete())
+    menu_.reset(new views::Menu2(GetFinishedMenuModel()));
+  else
+    menu_.reset(new views::Menu2(GetInProgressMenuModel()));
+
+  // The menu's alignment is determined based on the UI layout.
+  views::Menu2::Alignment alignment;
+  if (base::i18n::IsRTL())
+    alignment = views::Menu2::ALIGN_TOPRIGHT;
+  else
+    alignment = views::Menu2::ALIGN_TOPLEFT;
+  menu_->RunMenuAt(point, alignment);
+}
+
+void DownloadShelfContextMenuView::Stop() {
+  set_download_item(NULL);
+}