Add frame-specific InterfaceProviderSpec.

content/public/test/mock_render_thread.cc

Index: content/public/test/mock_render_thread.cc
diff --git a/content/public/test/mock_render_thread.cc b/content/public/test/mock_render_thread.cc
index 455f2f1cc8922dc0b4053a8a214e23f1c89eafe7..e5edbf98e0518c35ae3a68e8ac2def16fc14863e 100644
--- a/content/public/test/mock_render_thread.cc
+++ b/content/public/test/mock_render_thread.cc
@@ -19,6 +19,7 @@
 #include "ipc/message_filter.h"
 #include "services/service_manager/public/cpp/interface_provider.h"
 #include "services/service_manager/public/cpp/interface_registry.h"
+#include "services/service_manager/public/interfaces/interface_provider_spec.mojom.h"
 #include "testing/gtest/include/gtest/gtest.h"
 #include "third_party/WebKit/public/web/WebScriptController.h"
 
@@ -234,7 +235,7 @@ ServiceManagerConnection* MockRenderThread::GetServiceManagerConnection() {
 service_manager::InterfaceRegistry* MockRenderThread::GetInterfaceRegistry() {
   if (!interface_registry_) {
     interface_registry_ = base::MakeUnique<service_manager::InterfaceRegistry>(
-        service_manager::Identity(), service_manager::InterfaceProviderSpec());
+        service_manager::mojom::kServiceManager_ConnectorSpec);
   }
   return interface_registry_.get();
 }