WIP: Towards merging OffscreenCanvas and Mus code

ui/compositor/BUILD.gn

Index: ui/compositor/BUILD.gn
diff --git a/ui/compositor/BUILD.gn b/ui/compositor/BUILD.gn
index 3f3cba355d404b75debe1ed98d07ba2498b6f0c6..440ddf6fd3573c8b819b68ddf3f9fe98d3e105ae 100644
--- a/ui/compositor/BUILD.gn
+++ b/ui/compositor/BUILD.gn
@@ -79,10 +79,12 @@ component("compositor") {
     "//base/third_party/dynamic_annotations",
     "//cc",
     "//cc/animation",
+    "//cc/ipc:interfaces",
     "//cc/paint",
     "//cc/surfaces",
     "//cc/surfaces:surface_id",
     "//cc/surfaces:surfaces",
+    "//components/display_compositor",
     "//gpu/command_buffer/common",
     "//skia",
     "//ui/gfx",
@@ -143,6 +145,7 @@ static_library("test_support") {
     "//cc",
     "//cc:test_support",
     "//cc/surfaces",
+    "//components/display_compositor",
     "//gpu/command_buffer/client:gles2_c_lib",
     "//gpu/command_buffer/client:gles2_implementation",
     "//gpu/command_buffer/common:gles2_utils",