FBTF: Remove unneeded headers from base/ (part 7)

webkit/glue/plugins/pepper_resource.cc

 // Copyright (c) 2010 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/glue/plugins/pepper_resource.h"
 
+#include "base/logging.h"
 #include "webkit/glue/plugins/pepper_resource_tracker.h"
 
 namespace pepper {
 
 PP_Resource Resource::GetReference() {
   ResourceTracker *tracker = ResourceTracker::Get();
   if (resource_id_)
     tracker->AddRefResource(resource_id_);
   else
     resource_id_ = tracker->AddResource(this);
   return resource_id_;
 }
+
+void Resource::StoppedTracking() {
+  DCHECK(resource_id_ != 0);
+  resource_id_ = 0;
+}
+
 }  // namespace pepper