WIP: move OffscreenCanvas into new display compositor

content/browser/BUILD.gn

Index: content/browser/BUILD.gn
diff --git a/content/browser/BUILD.gn b/content/browser/BUILD.gn
index e75bc9d5d51e6cf811fd3a0d4293340a1f26beea..b2cd2d2808b4a69d8509538350b0620335dc4a6f 100644
--- a/content/browser/BUILD.gn
+++ b/content/browser/BUILD.gn
@@ -117,6 +117,7 @@ source_set("browser") {
     "//services/shape_detection/public/interfaces",
     "//services/ui/gpu/interfaces",
     "//services/ui/public/cpp/gpu",
+    "//services/ui/surfaces:surfaces",
     "//skia",
     "//sql",
     "//storage/browser",
@@ -1142,10 +1143,6 @@ source_set("browser") {
     "renderer_host/media/video_frame_receiver_on_io_thread.h",
     "renderer_host/native_web_keyboard_event_aura.cc",
     "renderer_host/native_web_keyboard_event_mac.mm",
-    "renderer_host/offscreen_canvas_compositor_frame_sink.cc",
-    "renderer_host/offscreen_canvas_compositor_frame_sink.h",
-    "renderer_host/offscreen_canvas_compositor_frame_sink_provider_impl.cc",
-    "renderer_host/offscreen_canvas_compositor_frame_sink_provider_impl.h",
     "renderer_host/offscreen_canvas_surface_factory_impl.cc",
     "renderer_host/offscreen_canvas_surface_factory_impl.h",
     "renderer_host/offscreen_canvas_surface_impl.cc",