Multi-select <select> in 'external popup window'

content/browser/web_contents/web_contents_view_mac.mm

 // 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.
 
 #import <Carbon/Carbon.h>
 
 #import "content/browser/web_contents/web_contents_view_mac.h"
 
 #include <string>
 
 #import "base/mac/scoped_sending_event.h"
 #import "base/message_pump_mac.h"
+#include "content/browser/renderer_host/popup_menu_helper_mac.h"
 #include "content/browser/renderer_host/render_view_host_factory.h"
 #include "content/browser/renderer_host/render_view_host_impl.h"
 #include "content/browser/renderer_host/render_widget_host_view_mac.h"
 #include "content/browser/web_contents/web_contents_impl.h"
 #import "content/browser/web_contents/web_drag_dest_mac.h"
 #import "content/browser/web_contents/web_drag_source_mac.h"
 #include "content/common/view_messages.h"
 #include "content/public/browser/web_contents_delegate.h"
 #include "content/public/browser/web_contents_view_delegate.h"
 #include "skia/ext/skia_utils_mac.h"
@@ skipping 257 matching lines @@
       web_contents_->GetDelegate()->HandleContextMenu(params)) {
     return;
   }
 
   if (delegate())
     delegate()->ShowContextMenu(params);
   else
     DLOG(ERROR) << "Cannot show context menus without a delegate.";
 }
 
+// Display a popup menu for WebKit using Cocoa widgets.
+void WebContentsViewMac::ShowPopupMenu(
+    const gfx::Rect& bounds,
+    int item_height,
+    double item_font_size,
+    int selected_item,
+    const std::vector<WebMenuItem>& items,
+    bool right_aligned,
+    bool allow_multiple_selection) {
+  PopupMenuHelper popup_menu_helper(web_contents_->GetRenderViewHost());
+  popup_menu_helper.ShowPopupMenu(bounds, item_height, item_font_size,
+                                  selected_item, items, right_aligned,
+                                  allow_multiple_selection);
+}
+
 bool WebContentsViewMac::IsEventTracking() const {
   return base::MessagePumpMac::IsHandlingSendEvent();
 }
 
 // Arrange to call CloseTab() after we're back to the main event loop.
 // The obvious way to do this would be PostNonNestableTask(), but that
 // will fire when the event-tracking loop polls for events.  So we
 // need to bounce the message via Cocoa, instead.
 void WebContentsViewMac::CloseTabAfterEventTracking() {
   [cocoa_view_ cancelDeferredClose];
@@ skipping 194 matching lines @@
       [[[notification userInfo] objectForKey:kSelectionDirection]
         unsignedIntegerValue];
   if (direction == NSDirectSelection)
     return;
 
   [self webContents]->
       FocusThroughTabTraversal(direction == NSSelectingPrevious);
 }
 
 @end