diff --git content/browser/frame_host/render_frame_message_filter.cc content/browser/frame_host/render_frame_message_filter.cc
index 93a1da4..476d7cc 100644
--- content/browser/frame_host/render_frame_message_filter.cc
+++ content/browser/frame_host/render_frame_message_filter.cc
@@ -491,7 +491,7 @@ void RenderFrameMessageFilter::GetPluginsCallback(
   PluginServiceFilter* filter = PluginServiceImpl::GetInstance()->GetFilter();
   std::vector<WebPluginInfo> plugins;
 
-  int child_process_id = -1;
+  int child_process_id = render_process_id_;
   int routing_id = MSG_ROUTING_NONE;
   // In this loop, copy the WebPluginInfo (and do not use a reference) because
   // the filter might mutate it.