Get rid of virtual Display::CreateScheduler.

content/browser/compositor/gpu_process_transport_factory.cc

 // Copyright 2014 The Chromium Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 #include "content/browser/compositor/gpu_process_transport_factory.h"
 
 #include <string>
 #include <utility>
 
 #include "base/bind.h"
@@ skipping 471 matching lines @@
   data->display_output_surface = display_output_surface.get();
   if (data->reflector)
     data->reflector->OnSourceSurfaceReady(data->display_output_surface);
 
 #if defined(OS_WIN)
   gfx::RenderingWindowManager::GetInstance()->DoSetParentOnChild(
       compositor->widget());
 #endif
 
   // The Display owns and uses the |display_output_surface| created above.
+  auto* begin_frame_source = display_output_surface->GetBeginFrameSource();
   data->display = base::MakeUnique<cc::Display>(
       surface_manager_.get(), HostSharedBitmapManager::current(),
       BrowserGpuMemoryBufferManager::current(),
       compositor->GetRendererSettings(),
       compositor->surface_id_allocator()->id_namespace(),
-      compositor->task_runner().get(), std::move(display_output_surface));
+      compositor->task_runner().get(), begin_frame_source,
+      std::move(display_output_surface));
 
   // The |delegated_output_surface| is given back to the compositor, it
   // delegates to the Display as its root surface. Importantly, it shares the
   // same ContextProvider as the Display's output surface.
   std::unique_ptr<cc::SurfaceDisplayOutputSurface> delegated_output_surface(
       vulkan_context_provider
           ? new cc::SurfaceDisplayOutputSurface(
                 surface_manager_.get(), compositor->surface_id_allocator(),
                 data->display.get(),
                 static_cast<scoped_refptr<cc::VulkanContextProvider>>(
@@ skipping 271 matching lines @@
       shared_vulkan_context_provider_ =
           cc::VulkanInProcessContextProvider::Create();
     }
 
     shared_vulkan_context_provider_initialized_ = true;
   }
   return shared_vulkan_context_provider_;
 }
 
 }  // namespace content