Move JS support code from //mojo/edk/js to //services/js/system

services/js/system/BUILD.gn

 # Copyright 2014 The Chromium Authors. All rights reserved.
 # Use of this source code is governed by a BSD-style license that can be
 # found in the LICENSE file.
 
-import("../mojo_edk.gni")
-
 # TODO(hansmuller): The organization of tests in this directory is weird:
 #   * Really, js_unittests tests public stuff, so that should live in public
 #     and be reworked as some sort of apptest.
 #   * Both js_unittests and js_integration_tests should auto-generate their
 #     tests somehow. The .cc files are just test runner stubs, including
 #     explicit lists of .js files.
 group("tests") {
   testonly = true
   deps = [
     "test:js_unittests",
     "test:js_integration_tests",
   ]
 }
 
-mojo_edk_source_set("js") {
+source_set("system") {
   sources = [
     "core.cc",
     "core.h",
     "drain_data.cc",
     "drain_data.h",
     "handle.cc",
     "handle.h",
     "handle_close_observer.h",
     "mojo_runner_delegate.cc",
     "mojo_runner_delegate.h",
     "support.cc",
     "support.h",
     "threading.cc",
     "threading.h",
     "waiting_callback.cc",
     "waiting_callback.h",
   ]
 
   public_deps = [
     "//base",
     "//gin",
+    "//mojo/public/cpp/environment",
+    "//mojo/public/cpp/system",
     "//v8",
   ]
-
-  mojo_sdk_deps = [
-    "mojo/public/cpp/environment",
-    "mojo/public/cpp/system",
-  ]
 }
 
-mojo_edk_source_set("js_unittests") {
+source_set("js_unittests") {
   testonly = true
   sources = [
     "handle_unittest.cc",
   ]
 
   deps = [
+    ":system",
+    "//mojo/edk/test:test_support",
+    "//mojo/public/cpp/system",
     "//testing/gtest",
   ]
-
-  mojo_edk_deps = [
-    "mojo/edk/js",
-    "mojo/edk/test:test_support",
-  ]
-
-  mojo_sdk_deps = [ "mojo/public/cpp/system" ]
 }