Track NPObject ownership by the originating plugins' NPP identifier. [4/6] (Chrome)

content/plugin/plugin_channel.h

Index: content/plugin/plugin_channel.h
diff --git a/content/plugin/plugin_channel.h b/content/plugin/plugin_channel.h
index 7860a17ea8d24fdced90b6559646d2f0096e43ca..581a3ee43211daf17256e99238f05ea10d0895cd 100644
--- a/content/plugin/plugin_channel.h
+++ b/content/plugin/plugin_channel.h
@@ -92,6 +92,10 @@ class PluginChannel : public NPChannelBase {
   bool incognito_; // True if the renderer is in incognito mode.
   scoped_refptr<MessageFilter> filter_;  // Handles the modal dialog events.
 
+  // Dummy NPP value used in the plugin process to represent entities other
+  // that other plugin instances for the purpose of object ownership tracking.
+  scoped_ptr<struct _NPP> npp_;
+
   DISALLOW_COPY_AND_ASSIGN(PluginChannel);
 };