Revert of mac: ensure ui::Compositor exists for visible RWHVs

content/test/BUILD.gn

Index: content/test/BUILD.gn
diff --git a/content/test/BUILD.gn b/content/test/BUILD.gn
index 61f8529a9032fe331657ae13dd714620b76ff64c..a59f6e4fcbc12dcad0ab73f6daa05b7a40838b4d 100644
--- a/content/test/BUILD.gn
+++ b/content/test/BUILD.gn
@@ -196,10 +196,6 @@
 
   if (v8_use_external_startup_data) {
     deps += [ "//gin:gin" ]
-  }
-
-  if (is_mac) {
-    deps += [ "//ui/accelerated_widget_mac" ]
   }
 }
 
@@ -796,7 +792,6 @@
     deps += [
       "//third_party/mozilla",
       "//third_party/ocmock",
-      "//ui/accelerated_widget_mac",
     ]
   }
   if (is_chromeos) {