Service CreateNewWindow on the UI thread with a new mojo interface

content/browser/renderer_host/render_process_host_impl.cc

Index: content/browser/renderer_host/render_process_host_impl.cc
diff --git a/content/browser/renderer_host/render_process_host_impl.cc b/content/browser/renderer_host/render_process_host_impl.cc
index 9986ff6686d9b1f4b136e33816a1a20056bc5b80..c46d4419bb238cb416c66d00c74d6173b073d41b 100644
--- a/content/browser/renderer_host/render_process_host_impl.cc
+++ b/content/browser/renderer_host/render_process_host_impl.cc
@@ -113,6 +113,7 @@
 #include "content/browser/renderer_host/pepper/pepper_message_filter.h"
 #include "content/browser/renderer_host/pepper/pepper_renderer_connection.h"
 #include "content/browser/renderer_host/render_message_filter.h"
+#include "content/browser/renderer_host/render_message_filter_ui.h"
 #include "content/browser/renderer_host/render_view_host_delegate.h"
 #include "content/browser/renderer_host/render_view_host_impl.h"
 #include "content/browser/renderer_host/render_widget_helper.h"
@@ -1190,11 +1191,17 @@ void RenderProcessHostImpl::CreateMessageFilters() {
 
 void RenderProcessHostImpl::RegisterMojoInterfaces() {
   auto registry = base::MakeUnique<service_manager::BinderRegistry>();
+  associated_registry_.reset(new AssociatedInterfaceRegistryImpl());
 
   channel_->AddAssociatedInterfaceForIOThread(
       base::Bind(&IndexedDBDispatcherHost::AddBinding,
                  base::Unretained(indexed_db_factory_.get())));
 
+  static_cast<AssociatedInterfaceRegistry*>(associated_registry_.get())
+      ->AddInterface(base::Bind(
+          &RenderMessageFilterUI::CreateFilter, base::Unretained(this),
+          base::RetainedRef(storage_partition_impl_->GetDOMStorageContext())));
+
 #if defined(OS_ANDROID)
   AddUIThreadInterface(
       registry.get(), GetGlobalJavaInterfaces()
@@ -2083,6 +2090,8 @@ void RenderProcessHostImpl::OnAssociatedInterfaceRequest(
     mojom::RouteProviderAssociatedRequest request;
     request.Bind(std::move(handle));
     route_provider_binding_.Bind(std::move(request));
+  } else if (associated_registry_->CanBindRequest(interface_name)) {
+    associated_registry_->BindRequest(interface_name, std::move(handle));
   } else {
     LOG(ERROR) << "Request for unknown Channel-associated interface: "
                << interface_name;