Context menu for title bar doesn't appear when a tab's context menu was open....

chrome/views/chrome_menu.cc

 // Copyright (c) 2006-2008 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/views/chrome_menu.h"
 
 #include <windows.h>
 #include <uxtheme.h>
 #include <Vssym32.h>
 
@@ skipping 2745 matching lines @@
     else if (event.IsRightMouseButton())
       event_type = in_client_area ? WM_RBUTTONDOWN : WM_NCRBUTTONDOWN;
     else
       event_type = 0;  // Unknown mouse press.
 
     if (event_type) {
       if (in_client_area) {
         PostMessage(window, event_type, event.GetWindowsFlags(),
                     MAKELPARAM(window_x, window_y));
       } else {
-        PostMessage(window, WM_NCLBUTTONDOWN, nc_hit_result,
-                    MAKELPARAM(window_x, window_y));
+        PostMessage(window, event_type, nc_hit_result,
+                    MAKELPARAM(screen_loc.x(), screen_loc.y()));
       }
     }
   }
 }
 
 void MenuController::SetDropMenuItem(
     MenuItemView* new_target,
     MenuDelegate::DropPosition new_position) {
   if (new_target == drop_target_ && new_position == drop_position_)
     return;
@@ skipping 17 matching lines @@
   if (!scroll_task_.get())
     scroll_task_.reset(new MenuScrollTask());
   scroll_task_->Update(part);
 }
 
 void MenuController::StopScrolling() {
   scroll_task_.reset(NULL);
 }
 
 }  // namespace views