Keep the module in scope when executing scripts. This prevents a crash when the

ppapi/proxy/host_dispatcher.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 "ppapi/proxy/host_dispatcher.h"
 
 #include <map>
 
 #include "base/logging.h"
 #include "ppapi/c/private/ppb_proxy_private.h"
@@ skipping 215 matching lines @@
     // the proxy does. If this happens, something is out of sync.
     NOTREACHED();
     return NULL;
   }
 
   InterfaceProxy* proxy = info->create_proxy(this, local_interface);
   target_proxies_[info->id].reset(proxy);
   return proxy;
 }
 
+

[viettrungluu, 2011/04/18 19:53:41]

Nit: Is the extra blank line really necessary?

+// ScopedModuleReference -------------------------------------------------------
+
+ScopedModuleReference::ScopedModuleReference(Dispatcher* dispatcher) {
+  DCHECK(!dispatcher->IsPlugin());
+  dispatcher_ = static_cast<HostDispatcher*>(dispatcher);
+  dispatcher_->ppb_proxy()->AddRefModule(dispatcher_->pp_module());
+}
+
+ScopedModuleReference::~ScopedModuleReference() {
+  dispatcher_->ppb_proxy()->ReleaseModule(dispatcher_->pp_module());
+}
+
 }  // namespace proxy
 }  // namespace pp