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

content/plugin/webplugin_proxy.cc

 // 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.
 
 #include "content/plugin/webplugin_proxy.h"
 
 #include "build/build_config.h"
 
 #include "base/bind.h"
 #include "base/lazy_instance.h"
@@ skipping 202 matching lines @@
   if (window_npobject_)
     return window_npobject_;
 
   int npobject_route_id = channel_->GenerateRouteID();
   bool success = false;
   Send(new PluginHostMsg_GetWindowScriptNPObject(
       route_id_, npobject_route_id, &success));
   if (!success)
     return NULL;
 
+  // PluginChannel creates a dummy owner identifier for unknown owners, so
+  // use that.
+  NPP owner = channel_->GetExistingNPObjectOwner(MSG_ROUTING_NONE);
+
   window_npobject_ = NPObjectProxy::Create(channel_.get(),
                                            npobject_route_id,
                                            host_render_view_routing_id_,
-                                           page_url_);
+                                           page_url_,
+                                           owner);
 
   return window_npobject_;
 }
 
 NPObject* WebPluginProxy::GetPluginElement() {
   if (plugin_element_)
     return plugin_element_;
 
   int npobject_route_id = channel_->GenerateRouteID();
   bool success = false;
   Send(new PluginHostMsg_GetPluginElement(route_id_, npobject_route_id,
                                           &success));
   if (!success)
     return NULL;
 
+  // PluginChannel creates a dummy owner identifier for unknown owners, so
+  // use that.
+  NPP owner = channel_->GetExistingNPObjectOwner(MSG_ROUTING_NONE);
+
   plugin_element_ = NPObjectProxy::Create(channel_.get(),
                                           npobject_route_id,
                                           host_render_view_routing_id_,
-                                          page_url_);
+                                          page_url_,
+                                          owner);
 
   return plugin_element_;
 }
 
 bool WebPluginProxy::FindProxyForUrl(const GURL& url, std::string* proxy_list) {
   bool result = false;
   Send(new PluginHostMsg_ResolveProxy(route_id_, url, &result, proxy_list));
   return result;
 }
 
@@ skipping 439 matching lines @@
   int input_type;
   gfx::Rect caret_rect;
   if (!delegate_->GetIMEStatus(&input_type, &caret_rect))
     return;
 
   Send(new PluginHostMsg_NotifyIMEStatus(route_id_, input_type, caret_rect));
 }
 #endif
 
 }  // namespace content