Started on Resource class.

src/shared/ppapi_proxy/plugin_resource.cc

+// Copyright (c) 2010 The Native Client 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 "native_client/src/shared/ppapi_proxy/plugin_resource.h"
+
+namespace ppapi_proxy {
+
+PluginResource::PluginResource(PluginModule* module)
+    : resource_id_(0), module_(module) {
+}
+
+PluginResource::~PluginResource() {
+}
+
+PP_Resource PluginResource::GetReference() {
+  PluginResourceTracker *tracker = PluginResourceTracker::Get();
+  if (resource_id_)
+    tracker->AddRefResource(resource_id_);
+  else
+    resource_id_ = tracker->AddResource(this);
+  return resource_id_;
+}
+
+void PluginResource::StoppedTracking() {
+  resource_id_ = 0;
+}
+
+}  // namespace ppapi_proxy
+