Use ScopedRefNPObject to pass NPObjects in the host plugin.

remoting/host/plugin/host_plugin_utils.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 "remoting/host/plugin/host_plugin_utils.h"
 
 namespace remoting {
 
 NPNetscapeFuncs* g_npnetscape_funcs = NULL;
 
@@ skipping 29 matching lines @@
   return NPVARIANT_TO_OBJECT(variant);
 }
 
 ScopedRefNPObject::ScopedRefNPObject() : object_(NULL) { }
 
 ScopedRefNPObject::ScopedRefNPObject(NPObject* object)
     : object_(NULL) {
   *this = object;
 }
 
+ScopedRefNPObject::ScopedRefNPObject(const ScopedRefNPObject& object)
+    : object_(NULL) {
+  *this = object.get();

[Wez, 2012/04/09 20:00:50]

nit: Do you need get() here, since there's an operator=(const
ScopedRefNPObject&) defined below?

[Sergey Ulanov, 2012/04/09 20:06:32]

Done.

+}
+
 ScopedRefNPObject::~ScopedRefNPObject() {
   *this = NULL;
 }
 
 ScopedRefNPObject& ScopedRefNPObject::operator=(NPObject* object) {
   if (object) {
     g_npnetscape_funcs->retainobject(object);
   }
   if (object_) {
     g_npnetscape_funcs->releaseobject(object_);
   }
   object_ = object;
   return *this;
 }
 
+ScopedRefNPObject& ScopedRefNPObject::operator=(
+    const ScopedRefNPObject& object) {
+  return *this = object.get();
+}
+
 }  // namespace remoting