Ensure HandleDocumentLoad isn't called if the instance is destroyed

content/renderer/pepper/pepper_plugin_instance_impl.cc

Index: content/renderer/pepper/pepper_plugin_instance_impl.cc
diff --git a/content/renderer/pepper/pepper_plugin_instance_impl.cc b/content/renderer/pepper/pepper_plugin_instance_impl.cc
index 0811eba1f5d5c7cb0426baa15a1a18be97af67d4..e6b5df1ada4d66a96e10786e1869646aa267b5d3 100644
--- a/content/renderer/pepper/pepper_plugin_instance_impl.cc
+++ b/content/renderer/pepper/pepper_plugin_instance_impl.cc
@@ -3209,6 +3209,9 @@ void PepperPluginInstanceImpl::DidDataFromWebURLResponse(
     const blink::WebURLResponse& response,
     int pending_host_id,
     const ppapi::URLResponseInfoData& data) {
+  if (is_deleted_)
+    return;
+
   RendererPpapiHostImpl* host_impl = module_->renderer_ppapi_host();
 
   if (host_impl->in_process_router()) {