Implement proper synchronization between HW video decode IPC and CommandBuffer.

webkit/plugins/ppapi/resource_tracker.h

 // 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.
 
 #ifndef WEBKIT_PLUGINS_PPAPI_RESOURCE_TRACKER_H_
 #define WEBKIT_PLUGINS_PPAPI_RESOURCE_TRACKER_H_
 
 #include <map>
 #include <set>
 #include <utility>
@@ skipping 157 matching lines @@
 
   // See SetSingletonOverride above.
   static ResourceTracker* singleton_override_;
 
   // Last assigned resource & var ID.
   PP_Resource last_resource_id_;
   int32 last_var_id_;
 
   // For each PP_Resource, keep the Resource* (as refptr) and plugin use count.
   // This use count is different then Resource's RefCount, and is manipulated
-  // using this RefResource/UnrefResource. When it drops to zero, we just remove
-  // the resource from this resource tracker, but the resource object will be
-  // alive so long as some scoped_refptr still holds it's reference. This
-  // prevents plugins from forcing destruction of Resource objects.
+  // using this AddRefResource/UnrefResource. When it drops to zero, we just
+  // remove the resource from this resource tracker, but the resource object
+  // will be alive so long as some scoped_refptr still holds it's
+  // reference. This prevents plugins from forcing destruction of Resource
+  // objects.
   typedef std::pair<scoped_refptr<Resource>, size_t> ResourceAndRefCount;
   typedef base::hash_map<PP_Resource, ResourceAndRefCount> ResourceMap;
   ResourceMap live_resources_;
 
   // Like ResourceAndRefCount but for vars, which are associated with modules.
   typedef std::pair<scoped_refptr<Var>, size_t> VarAndRefCount;
   typedef base::hash_map<int32, VarAndRefCount> VarMap;
   VarMap live_vars_;
 
   // Tracks all live instances and their associated data.
   typedef std::map<PP_Instance, linked_ptr<InstanceData> > InstanceMap;
   InstanceMap instance_map_;
 
   // Tracks all live modules. The pointers are non-owning, the PluginModule
   // destructor will notify us when the module is deleted.
   typedef std::map<PP_Module, PluginModule*> ModuleMap;
   ModuleMap module_map_;
 
   DISALLOW_COPY_AND_ASSIGN(ResourceTracker);
 };
 
 }  // namespace ppapi
 }  // namespace webkit
 
 #endif  // WEBKIT_PLUGINS_PPAPI_RESOURCE_TRACKER_H_