Add context menu support (issue #509):

- Add new CefContextMenuHandler, CefContextMenuParams and CefMenuModel classes.
- Add cef_strings.grd and related infrastructure for supporting translation of CEF strings.
- Generate include/cef_pack_resources.h and include/cef_pack_strings.h files at build time that include all IDs used by CEF pack files.

git-svn-id: https://chromiumembedded.googlecode.com/svn/trunk@595 5089003a-bbd8-11dd-ad1f-f1f9622dbc98

libcef/browser/menu_creator_runner_win.cc

@@ -0,0 +1,34 @@
+// Copyright (c) 2012 The Chromium Embedded Framework 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 "libcef/browser/menu_creator_runner_win.h"
+#include "libcef/browser/browser_host_impl.h"
+
+#include "base/message_loop.h"
+#include "content/public/browser/web_contents_view.h"
+#include "ui/gfx/point.h"
+#include "ui/views/controls/menu/menu_2.h"
+
+CefMenuCreatorRunnerWin::CefMenuCreatorRunnerWin() {
+}
+
+bool CefMenuCreatorRunnerWin::RunContextMenu(CefMenuCreator* manager) {
+  // Create a menu based on the model.
+  menu_.reset(new views::NativeMenuWin(manager->model(), NULL));
+  menu_->Rebuild();
+
+  // Make sure events can be pumped while the menu is up.
+  MessageLoop::ScopedNestableTaskAllower allow(MessageLoop::current());
+
+  gfx::Point screen_point(manager->params().x, manager->params().y);
+  POINT temp = screen_point.ToPOINT();
+  HWND hwnd = manager->browser()->GetWebContents()->GetView()->GetNativeView();
+  ClientToScreen(hwnd, &temp);
+  screen_point = temp;
+
+  // Show the menu. Blocks until the menu is dismissed.
+  menu_->RunMenuAt(screen_point, views::Menu2::ALIGN_TOPLEFT);
+
+  return true;
+}