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 29092f2f42fb58e037377acbf6181fdca5692685..dacaec5a956ef29579d34952a8537457fafa54da 100644
--- a/content/browser/loader/resource_dispatcher_host_impl.cc
+++ b/content/browser/loader/resource_dispatcher_host_impl.cc
@@ -2269,6 +2269,18 @@ 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) {