Update iOS GN templates.

testing/test.gni

 # Copyright 2015 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.
 
 # ==============================================================================
 # TEST SETUP
 # ==============================================================================
 
 # Define a test as an executable (or apk on Android) with the "testonly" flag
 # set.
@@ skipping 149 matching lines @@
                                "cflags_objc",
                                "cflags_objcc",
                                "check_includes",
                                "configs",
                                "data",
                                "data_deps",
                                "defines",
                                "include_dirs",
                                "ldflags",
                                "libs",
-                               "output_extension",
-                               "output_name",
                                "public",
                                "public_configs",
                                "public_deps",
                                "sources",
                                "visibility",
                              ])
 
       if (defined(invoker.deps)) {
         deps = invoker.deps
       } else {
@@ skipping 29 matching lines @@
     # TODO(GYP): Delete this after we've converted everything to GN.
     # The _run targets exist only for compatibility with GYP.
     group("${target_name}_run") {
       testonly = true
       deps = [
         ":$main_target_name",
       ]
     }
   }
 }