Move the test template to //testing/test.gni (part 2)

google_apis/gcm/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")
 import("//third_party/protobuf/proto_library.gni")
 
 component("gcm") {
   sources = [
     "base/mcs_message.cc",
     "base/mcs_message.h",
     "base/mcs_util.cc",
     "base/mcs_util.h",
     "base/socket_stream.cc",
     "base/socket_stream.h",
@@ skipping 114 matching lines @@
   deps = [
     ":proto",
     ":test_support",
     "//base",
     "//base/test:run_all_unittests",
     "//net",
     "//net:test_support",
     "//testing/gtest",
   ]
 }