Implementation of URLLoader using PluginResource/ResourceHost.

ppapi/thunk/resource_creation_api.h

Index: ppapi/thunk/resource_creation_api.h
diff --git a/ppapi/thunk/resource_creation_api.h b/ppapi/thunk/resource_creation_api.h
index cd7e3482c6b8f5dca27739c6cb92c8f7beb99468..ec512ea956c5cdd9417dde1b9d8c580dffc191eb 100644
--- a/ppapi/thunk/resource_creation_api.h
+++ b/ppapi/thunk/resource_creation_api.h
@@ -29,6 +29,7 @@ struct PP_Size;
 
 namespace ppapi {
 
+struct PPB_FileRef_CreateInfo;
 struct URLRequestInfoData;
 struct URLResponseInfoData;
 
@@ -47,6 +48,12 @@ class ResourceCreationAPI {
   virtual PP_Resource CreateFileRef(PP_Instance instance,
                                     PP_Resource file_system,
                                     const char* path) = 0;
+  // Like the above version but takes a serialized file ref. The resource
+  // in the serialized file ref is passed into this, which takes ownership of
+  // the reference. In the proxy, the return value will be a plugin resource.
+  // In the impl, the return value will be the same resource ID.
+  virtual PP_Resource CreateFileRef(
+      const PPB_FileRef_CreateInfo& serialized) = 0;
   virtual PP_Resource CreateFileSystem(PP_Instance instance,
                                        PP_FileSystemType type) = 0;
   virtual PP_Resource CreateIsolatedFileSystem(PP_Instance instance,