Move WorkerTaskRunner to content/child.

webkit/child/webkit_child.gyp

 # Copyright 2013 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': {
     'chromium_code': 1,
   },
   'conditions': [
     ['OS=="android"',
@@ skipping 69 matching lines @@
         'websocketstreamhandle_impl.cc',
         'websocketstreamhandle_impl.h',
         'webthread_impl.cc',
         'webthread_impl.h',
         'weburlloader_impl.cc',
         'weburlloader_impl.h',
         'weburlrequest_extradata_impl.cc',
         'weburlrequest_extradata_impl.h',
         'weburlresponse_extradata_impl.cc',
         'weburlresponse_extradata_impl.h',
-        'worker_task_runner.cc',
-        'worker_task_runner.h',
       ],
       # TODO(jschuh): crbug.com/167187 fix size_t to int truncations.
       'msvs_disabled_warnings': [ 4267 ],
       'conditions': [
         ['OS=="mac"',
           {
             'link_settings': {
               'libraries': [
                 '$(SDKROOT)/System/Library/Frameworks/QuartzCore.framework',
               ],
             },
           }
         ],
         ['OS=="android"',
           {
             'dependencies': [
               'overscroller_jni_headers',
             ],
           }
         ],
       ],
     },
   ],
 }