Implement Mojo SyncLoad

content/browser/loader/resource_dispatcher_host_impl.cc

Index: content/browser/loader/resource_dispatcher_host_impl.cc
diff --git a/content/browser/loader/resource_dispatcher_host_impl.cc b/content/browser/loader/resource_dispatcher_host_impl.cc
index 14bfe1749fb58250ddd77a038091b436aa48b309..1dee54e8a86f07b4818acab61287c883176c6470 100644
--- a/content/browser/loader/resource_dispatcher_host_impl.cc
+++ b/content/browser/loader/resource_dispatcher_host_impl.cc
@@ -2271,6 +2271,18 @@ void ResourceDispatcherHostImpl::OnRequestResourceWithMojo(
   filter_ = nullptr;
 }
 
+void ResourceDispatcherHostImpl::OnSyncLoadWithMojo(
+    int routing_id,
+    int request_id,
+    const ResourceRequest& request_data,
+    ResourceMessageFilter* filter,
+    const SyncLoadResultCallback& result_handler) {
+  filter_ = filter;
+  BeginRequest(request_id, request_data, result_handler, routing_id,
+               nullptr, nullptr);
+  filter_ = nullptr;
+}
+
 // static
 int ResourceDispatcherHostImpl::CalculateApproximateMemoryCost(
     net::URLRequest* request) {