Update from https://crrev.com/312398

sky/engine/wtf/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("//testing/test.gni")
+
 visibility = [ "//sky/*" ]
 
 component("wtf") {
   sources = [
     "AddressSpaceRandomization.cpp",
     "AddressSpaceRandomization.h",
     "Alignment.h",
     "ArrayBuffer.cpp",
     "ArrayBuffer.h",
     "ArrayBufferBuilder.cpp",
@@ skipping 282 matching lines @@
 
   configs += [
     "//sky/engine:config",
     "//sky/engine:non_test_config",
   ]
 
   deps = [
     ":wtf",
   ]
 }