Get rid of virtual Display::CreateScheduler.

ui/compositor/test/in_process_context_factory.cc

Index: ui/compositor/test/in_process_context_factory.cc
diff --git a/ui/compositor/test/in_process_context_factory.cc b/ui/compositor/test/in_process_context_factory.cc
index 3df283249cf99e744d3856da24ec014ce64b7dba..b88e3f39fb6981134df80d6243dba1e1cef79f02 100644
--- a/ui/compositor/test/in_process_context_factory.cc
+++ b/ui/compositor/test/in_process_context_factory.cc
@@ -152,6 +152,7 @@ void InProcessContextFactory::CreateOutputSurface(
   std::unique_ptr<cc::SyntheticBeginFrameSource> begin_frame_source(
       new cc::SyntheticBeginFrameSource(compositor->task_runner().get(),
                                         cc::BeginFrameArgs::DefaultInterval()));
+  auto* begin_frame_source_raw = begin_frame_source.get();
 
   if (use_test_surface_) {
     bool flipped_output_surface = false;
@@ -169,7 +170,8 @@ void InProcessContextFactory::CreateOutputSurface(
         surface_manager_, GetSharedBitmapManager(), GetGpuMemoryBufferManager(),
         compositor->GetRendererSettings(),
         compositor->surface_id_allocator()->id_namespace(),
-        compositor->task_runner().get(), std::move(display_output_surface)));
+        compositor->task_runner().get(), begin_frame_source_raw,
+        std::move(display_output_surface)));
     std::unique_ptr<cc::SurfaceDisplayOutputSurface> surface_output_surface(
         new cc::SurfaceDisplayOutputSurface(
             surface_manager_, compositor->surface_id_allocator(), display.get(),