Track NPObject ownership by the originating plugins' NPP identifier. [2/3] (Chrome)

webkit/glue/cpp_bound_class.h

 // Copyright (c) 2012 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.
 
 /*
   CppBoundClass class:
   This base class serves as a parent for C++ classes designed to be bound to
   JavaScript objects.
 
   Subclasses should define the constructor to build the property and method
@@ skipping 115 matching lines @@
   bool Invoke(NPIdentifier ident, const NPVariant* args, size_t arg_count,
               NPVariant* result);
   bool HasProperty(NPIdentifier ident) const;
   bool GetProperty(NPIdentifier ident, NPVariant* result) const;
   bool SetProperty(NPIdentifier ident, const NPVariant* value);
 
   // A lazily-initialized CppVariant representing this class.  We retain 1
   // reference to this object, and it is released on deletion.
   CppVariant self_variant_;
 
-  // True if our np_object has been bound to a WebFrame, in which case it must
-  // be unregistered with V8 when we delete it.
+  // TODO(wez): Remove once crrev.com/14019005 lands.
   bool bound_to_frame_;
 
+  // Dummy NPP to use to register as owner for NPObjects.
+  scoped_ptr<NPP_t> npp_;
+
   DISALLOW_COPY_AND_ASSIGN(CppBoundClass);
 };
 
 }  // namespace webkit_glue
 
 #endif  // WEBKIT_GLUE_CPP_BOUND_CLASS_H_