Balance defers with Resume.

content/browser/renderer_host/buffered_resource_handler.cc

Index: content/browser/renderer_host/buffered_resource_handler.cc
===================================================================
--- content/browser/renderer_host/buffered_resource_handler.cc	(revision 142108)
+++ content/browser/renderer_host/buffered_resource_handler.cc	(working copy)
@@ -387,12 +387,14 @@
   net::URLRequestStatus status(net::URLRequestStatus::HANDLED_EXTERNALLY, 0);
   next_handler_->OnResponseCompleted(request_id, status, std::string());
 
-  // Remove the non-owning pointer to the CrossSiteResourceHandler, if any,
-  // from the extra request info because the CrossSiteResourceHandler (part of
-  // the original ResourceHandler chain) will be deleted by the next statement.
+  // Remove the non-owning pointer to the {Async,CrossSite}ResourceHandler, if
+  // any, from the request info because the {Async,CrossSite}ResourceHandler
+  // (part of the original ResourceHandler chain) will be deleted by the next
+  // statement.
   ResourceRequestInfoImpl* info =
       ResourceRequestInfoImpl::ForRequest(request_);
   info->set_cross_site_handler(NULL);
+  info->set_async_handler(NULL);
 
   // This is handled entirely within the new ResourceHandler, so just reset the
   // original ResourceHandler.