Update from https://crrev.com/312398

sky/engine/platform/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("//build/config/ui.gni")
 import("//sky/engine/build/scripts/scripts.gni")
 import("//sky/engine/config.gni")
+import("//testing/test.gni")
 
 # Most targets in this file are private actions so use that as the default.
 visibility = [ ":*" ]
 
 sky_platform_output_dir = "$root_gen_dir/sky/platform"
 
 action("font_family_names") {
   script = "../build/scripts/make_names.py"
 
   font_family_names_in = "fonts/FontFamilyNames.in"
@@ skipping 748 matching lines @@
     # See https://bugs.webkit.org/show_bug.cgi?id=62916.
     # TODO(GYP)
     #'cflags': ['-marm'],
     #    'conditions': [
     #      ['OS=="android"', {
     #        'cflags!': ['-mthumb'],
     #      }],
     #    ],
   }
 }