[PPAPI] ResourceVar now reference counts its PP_Resource in the plugin.

content/renderer/pepper/host_var_tracker.cc

 // Copyright (c) 2012 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 "content/renderer/pepper/host_var_tracker.h"
 
 #include "base/logging.h"
 #include "content/renderer/pepper/host_array_buffer_var.h"
+#include "content/renderer/pepper/host_resource_var.h"
 #include "content/renderer/pepper/npobject_var.h"
 #include "content/renderer/pepper/pepper_plugin_instance_impl.h"
 #include "ppapi/c/pp_var.h"
 
 using ppapi::ArrayBufferVar;
 using ppapi::NPObjectVar;
 
 namespace content {
 
 HostVarTracker::HostVarTracker()
@@ skipping 76 matching lines @@
 
 int HostVarTracker::GetLiveNPObjectVarsForInstance(PP_Instance instance) const {
   CheckThreadingPreconditions();
 
   InstanceMap::const_iterator found = instance_map_.find(instance);
   if (found == instance_map_.end())
     return 0;
   return static_cast<int>(found->second->size());
 }
 
+ppapi::ResourceVar* HostVarTracker::MakeResourceVar(PP_Resource pp_resource) {
+  return new HostResourceVar(pp_resource);
+}
+
 void HostVarTracker::DidDeleteInstance(PP_Instance instance) {
   CheckThreadingPreconditions();
 
   InstanceMap::iterator found_instance = instance_map_.find(instance);
   if (found_instance == instance_map_.end())
     return;  // Nothing to do.
   NPObjectToNPObjectVarMap* np_object_map = found_instance->second.get();
 
   // Force delete all var references. ForceReleaseNPObject() will cause
   // this object, and potentially others it references, to be removed from
@@ skipping 47 matching lines @@
   if (it->second.instance != instance)
     return false;
 
   *handle = it->second.handle;
   *size_in_bytes = it->second.size_in_bytes;
   shared_memory_map_.erase(it);
   return true;
 }
 
 }  // namespace content