Add a testing restriction for whether Google Play Services is up-to-date.

chrome/test/android/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/android/rules.gni")
 
 # GYP: //chrome/chrome_tests.gypi:chrome_java_test_support
 android_library("chrome_java_test_support") {
   testonly = true
   DEPRECATED_java_in_dir = "javatests/src"
@@ skipping 12 matching lines @@
     "//net/android:net_java",
     "//net/android:net_java_test_support",
     "//sync:sync_java_test_support",
     "//sync/android:sync_java",
     "//testing/android/reporter:reporter_java",
     "//third_party/android_tools:android_support_v13_java",
     "//third_party/android_tools:android_support_v7_appcompat_java",
     "//third_party/android_tools:legacy_http_javalib",
     "//third_party/jsr-305:jsr_305_javalib",
     "//ui/android:ui_java",
+    google_play_services_library,

[jbudorick, 2016/01/13 14:43:50]

... does this work? I don't think I've seen something like this before.

[Yaron, 2016/01/13 15:54:30]

it does. It's how we selectively swap the library in gn between
external/internal

   ]
 }