Convert the PluginResource to be refcounted.

ppapi/proxy/plugin_resource_tracker_unittest.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 "base/memory/scoped_ptr.h"
 #include "base/process.h"
 #include "ppapi/proxy/mock_resource.h"
 #include "ppapi/proxy/plugin_dispatcher.h"
 #include "ppapi/proxy/plugin_resource_tracker.h"
 #include "ppapi/proxy/ppapi_messages.h"
@@ skipping 38 matching lines @@
 
   HostResource serialized;
   serialized.SetHostResource(pp_instance(), host_resource);
 
   // When we haven't added an object, the return value should be 0.
   EXPECT_EQ(0, tracker().PluginResourceForHostResource(serialized));
 
   EXPECT_EQ(0, TrackedMockResource::tracked_alive_count);
   TrackedMockResource* object = new TrackedMockResource(serialized);
   EXPECT_EQ(1, TrackedMockResource::tracked_alive_count);
-  PP_Resource plugin_resource =
-      tracker().AddResource(linked_ptr<PluginResource>(object));
+  PP_Resource plugin_resource = tracker().AddResource(object);
 
   // Now that the object has been added, the return value should be the plugin
   // resource ID we already got.
   EXPECT_EQ(plugin_resource,
             tracker().PluginResourceForHostResource(serialized));
 
   // Releasing the resource should have freed it.
   tracker().ReleaseResource(plugin_resource);
   EXPECT_EQ(0, TrackedMockResource::tracked_alive_count);
   EXPECT_EQ(0, tracker().PluginResourceForHostResource(serialized));
 }
 
 }  // namespace proxy
 }  // namespace pp