Service CreateNewWindow on the UI thread with a new mojo interface

content/public/test/mock_render_thread.h

Index: content/public/test/mock_render_thread.h
diff --git a/content/public/test/mock_render_thread.h b/content/public/test/mock_render_thread.h
index f6cca7389d546305fbc1846faf4d3c8d872bb1a1..8c4372029a81a85d101ac87d3671157218838d30 100644
--- a/content/public/test/mock_render_thread.h
+++ b/content/public/test/mock_render_thread.h
@@ -38,6 +38,7 @@ namespace mojom {
 class CreateNewWindowParams;
 class CreateNewWindowReply;
 class RenderMessageFilter;
+class RenderMessageFilterUI;
 }
 
 // This class is a very simple mock of RenderThread. It simulates an IPC channel
@@ -172,6 +173,7 @@ class MockRenderThread : public RenderThread {
   service_manager::mojom::ConnectorRequest pending_connector_request_;
 
   std::unique_ptr<mojom::RenderMessageFilter> mock_render_message_filter_;
+  std::unique_ptr<mojom::RenderMessageFilterUI> mock_render_message_filter_ui_;
 };
 
 }  // namespace content