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

chrome/test/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/features.gni")
 import("//build/config/ui.gni")
 import("//build/module_args/v8.gni")
+import("//testing/rules.gni")
 
 # This target exists to reference other test executables to bring these files
 # into the build.
 group("test") {
   testonly = true
   deps = [
     "//chrome/test/perf",
   ]
 }
 
@@ skipping 1188 matching lines @@
     # TODO(GYP) CDM adapter stuff.
     #if (enable_pepper_cdms) {
     #  deps += [
     #    "//media/cdm/ppapi:clearkeycdmadapter",
     #    "//ppapi:ppapi_cpp",
     #    "//third_party/widevine/cdm:adapter",
     #  ]
     #}
   }
 }