Mark //testing/perf target testonly.

chrome/chrome_browser.gypi

 # Copyright 2012 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.
 
 {
   'variables': {
     # All .cc, .h, .m, and .mm files under browser except for:
     # * tests and mocks.
     # * code below browser/chromeos
     # * code below browser/extensions
@@ skipping 3002 matching lines @@
             '../components/components.gyp:web_modal',
             '../components/components.gyp:web_resource',
             '../content/app/resources/content_resources.gyp:content_resources',
             '../media/media.gyp:media',
             '../mojo/mojo_base.gyp:mojo_common_lib',
             '../mojo/mojo_base.gyp:mojo_environment_chromium',
             '../net/net.gyp:net_extras',
             '../net/net.gyp:net_with_v8',
             '../storage/storage_browser.gyp:storage',
             '../storage/storage_common.gyp:storage_common',
-            # TODO(tonyg): Remove this dependency (crbug.com/280157).
-            '../testing/perf/perf_test.gyp:*',
             '../third_party/expat/expat.gyp:expat',
             '../third_party/leveldatabase/leveldatabase.gyp:leveldatabase',
             '../third_party/libaddressinput/libaddressinput.gyp:libaddressinput',
             '../third_party/libyuv/libyuv.gyp:libyuv',
             '../third_party/mojo/mojo_edk.gyp:mojo_system_impl',
             '../third_party/mojo/mojo_public.gyp:mojo_cpp_bindings',
             '../third_party/mojo/mojo_public.gyp:mojo_js_bindings',
             '../third_party/npapi/npapi.gyp:npapi',
             '../third_party/smhasher/smhasher.gyp:cityhash',
             '../third_party/webrtc/modules/modules.gyp:desktop_capture',
@@ skipping 667 matching lines @@
           'variables': {
             'proto_in_dir': 'browser/sync_file_system/drive_backend',
             'proto_out_dir': 'chrome/browser/sync_file_system/drive_backend',
           },
           'includes': [ '../build/protoc.gypi' ]
         },
       ],
     },],
   ],
 }