Introduce Display Compositor mojo interface. Use InProcessContextProvider.

services/ui/ws/server_window_compositor_frame_sink_manager.h

Index: services/ui/ws/server_window_compositor_frame_sink_manager.h
diff --git a/services/ui/ws/server_window_compositor_frame_sink_manager.h b/services/ui/ws/server_window_compositor_frame_sink_manager.h
index a473fff5ee2d317b529148d30a3b31b48722073a..d2db13e068e228009f5dd5decfe81554aa421c7f 100644
--- a/services/ui/ws/server_window_compositor_frame_sink_manager.h
+++ b/services/ui/ws/server_window_compositor_frame_sink_manager.h
@@ -13,7 +13,6 @@
 #include "cc/surfaces/surface_id.h"
 #include "mojo/public/cpp/bindings/binding.h"
 #include "services/ui/public/interfaces/window_tree.mojom.h"
-#include "services/ui/surfaces/surfaces_context_provider.h"
 
 namespace gpu {
 class GpuMemoryBufferManager;
@@ -57,8 +56,6 @@ class ServerWindowCompositorFrameSinkManager {
   void CreateCompositorFrameSink(
       mojom::CompositorFrameSinkType compositor_frame_sink_type,
       gfx::AcceleratedWidget widget,
-      gpu::GpuMemoryBufferManager* gpu_memory_buffer_manager,
-      scoped_refptr<SurfacesContextProvider> context_provider,
       cc::mojom::MojoCompositorFrameSinkRequest request,
       cc::mojom::MojoCompositorFrameSinkClientPtr client);