Introducing SurfaceReferenceFactory

cc/surfaces/BUILD.gn

Index: cc/surfaces/BUILD.gn
diff --git a/cc/surfaces/BUILD.gn b/cc/surfaces/BUILD.gn
index 284f1a10796142bc67aee8f4806eb83006292254..43560a8ce979ba3fd41f21ee344402a4fa4e7c65 100644
--- a/cc/surfaces/BUILD.gn
+++ b/cc/surfaces/BUILD.gn
@@ -10,6 +10,8 @@ cc_source_set("surface_id") {
     "frame_sink_id.h",
     "local_frame_id.cc",
     "local_frame_id.h",
+    "surface_embedding_base.cc",
+    "surface_embedding_base.h",
     "surface_id.cc",
     "surface_id.h",
     "surface_reference.cc",
@@ -17,11 +19,13 @@ cc_source_set("surface_id") {
     "surface_sequence.h",
     "surface_sequence_generator.cc",
     "surface_sequence_generator.h",
+    "surfaces_export.h",
   ]
 
   deps = [
     "//base",
     "//mojo/public/cpp/bindings:struct_traits",
+    "//ui/gfx/geometry:geometry",
   ]
 }
 
@@ -33,6 +37,8 @@ cc_component("surfaces") {
     "compositor_frame_sink_support_client.h",
     "direct_compositor_frame_sink.cc",
     "direct_compositor_frame_sink.h",
+    "direct_surface_embedding.cc",
+    "direct_surface_embedding.h",
     "display.cc",
     "display.h",
     "display_client.h",
@@ -42,6 +48,8 @@ cc_component("surfaces") {
     "surface.h",
     "surface_aggregator.cc",
     "surface_aggregator.h",
+    "surface_embedding.cc",
+    "surface_embedding.h",
     "surface_factory.cc",
     "surface_factory.h",
     "surface_factory_client.h",
@@ -55,7 +63,6 @@ cc_component("surfaces") {
     "surface_reference_manager.h",
     "surface_resource_holder.cc",
     "surface_resource_holder.h",
-    "surfaces_export.h",
   ]
 
   defines = [ "CC_SURFACES_IMPLEMENTATION=1" ]
@@ -63,6 +70,7 @@ cc_component("surfaces") {
   public_deps = [
     ":surface_id",
   ]
+
   deps = [
     "//base",
     "//base/third_party/dynamic_annotations",