Use the new callback tracker and delete the old one

webkit/plugins/ppapi/host_resource_tracker.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 "webkit/plugins/ppapi/host_resource_tracker.h"
-
-#include "ppapi/shared_impl/resource.h"
-#include "webkit/plugins/ppapi/callbacks.h"
-#include "webkit/plugins/ppapi/plugin_module.h"
-#include "webkit/plugins/ppapi/resource_helper.h"
-
-namespace webkit {
-namespace ppapi {
-
-HostResourceTracker::HostResourceTracker() {
-}
-
-HostResourceTracker::~HostResourceTracker() {
-}
-
-void HostResourceTracker::LastPluginRefWasDeleted(::ppapi::Resource* object) {
-  ::ppapi::ResourceTracker::LastPluginRefWasDeleted(object);
-
-  // TODO(brettw) this should be removed when we have the callback tracker
-  // moved to the shared_impl. This will allow the logic to post aborts for
-  // any callbacks directly in the Resource::LastPluginRefWasDeleted function
-  // and we can remove this function altogether.
-  PluginModule* plugin_module = ResourceHelper::GetPluginModule(object);
-  if (plugin_module) {
-    plugin_module->GetCallbackTracker()->PostAbortForResource(
-        object->pp_resource());
-  }
-}
-
-}  // namespace ppapi
-}  // namespace webkit