Add APK targets to build libjingle tests for Android.

webrtc/test/BUILD.gn

 # Copyright (c) 2014 The WebRTC project authors. All Rights Reserved.
 #
 # Use of this source code is governed by a BSD-style license
 # that can be found in the LICENSE file in the root of the source
 # tree. An additional intellectual property rights grant can be found
 # in the file PATENTS.  All contributing project authors may
 # be found in the AUTHORS file in the root of the source tree.
 
 # TODO(kjellander): Convert the rest of the test.gyp targets and put here.
 
 source_set("test") {
   testonly = true
 
   deps = [
     ":field_trial",
     ":test_support",
     ":test_support_main",
   ]
 }
 
 source_set("field_trial") {
   sources = [
     "field_trial.cc",
     "field_trial.h",
   ]
 
   deps = [
     "..:webrtc_common",
     "../system_wrappers",
+    "../system_wrappers:field_trial_default",
   ]
 
   configs += [ "..:common_config" ]
   public_configs = [ "..:common_inherited_config" ]
 }
 
 source_set("histogram") {
   sources = [
     "histogram.cc",
     "histogram.h",
@@ skipping 58 matching lines @@
     ":histogram",
     ":test_support",
     "//testing/gmock",
     "//testing/gtest",
     "//third_party/gflags",
   ]
 
   configs += [ "..:common_config" ]
   public_configs = [ "..:common_inherited_config" ]
 }