Fix plugin hang that Earth team found....

chrome/plugin/npobject_proxy.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/plugin/npobject_proxy.h"
 
 #include "base/waitable_event.h"
 #include "chrome/common/plugin_messages.h"
 #include "chrome/common/win_util.h"
 #include "chrome/plugin/npobject_util.h"
@@ skipping 145 matching lines @@
   } else {
     CreateNPIdentifierParam(name, &name_param);
   }
 
   // Note: This instance can get destroyed in the context of
   // Send so addref the channel in this scope.
   scoped_refptr<PluginChannelBase> channel_copy = proxy->channel_;
   std::vector<NPVariant_Param> args_param;
   for (unsigned int i = 0; i < arg_count; ++i) {
     NPVariant_Param param;
-    CreateNPVariantParam(args[i], channel_copy, &param, false);
+    CreateNPVariantParam(
+        args[i], channel_copy, &param, false, proxy->modal_dialog_event_);
     args_param.push_back(param);
   }
 
   NPVariant_Param param_result;
   NPObjectMsg_Invoke* msg = new NPObjectMsg_Invoke(
       proxy->route_id_, is_default, name_param, args_param, &param_result,
       &result);
 
   // If we're in the plugin process and this invoke leads to a dialog box, the
   // plugin will hang the window hierarchy unless we pump the window message
@@ skipping 82 matching lines @@
   bool result = false;
   NPObjectProxy* proxy = GetProxy(obj);
   if (!proxy) {
     return obj->_class->setProperty(obj, name, value);
   }
 
   NPIdentifier_Param name_param;
   CreateNPIdentifierParam(name, &name_param);
 
   NPVariant_Param value_param;
-  CreateNPVariantParam(*value, proxy->channel(), &value_param, false);
+  CreateNPVariantParam(
+      *value, proxy->channel(), &value_param, false,
+      proxy->modal_dialog_event_);
 
   proxy->Send(new NPObjectMsg_SetProperty(
       proxy->route_id(), name_param, value_param, &result));
   // Send may delete proxy.
   proxy = NULL;
 
   return result;
 }
 
 bool NPObjectProxy::NPRemoveProperty(NPObject *obj,
@@ skipping 108 matching lines @@
   }
 
   NPVariant_Param result_param;
   std::string message_str(message);
 
   proxy->Send(new NPObjectMsg_SetException(proxy->route_id(), message_str));
   // Send may delete proxy.
   proxy = NULL;
 }