Add crash_service to Telemetry's isolates.

chrome/telemetry_gpu_unittests.isolate

 # Copyright (c) 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.
 {
   'includes': [
     'telemetry.isolate',
   ],
   'conditions': [
     ['OS=="android" or OS=="linux" or OS=="mac" or OS=="win"', {
       'variables': {
         'files': [
           # Other dependencies of the tests and their harness.
           '../third_party/typ/',
           '../third_party/catapult/',
           '../testing/scripts/common.py',
           '../testing/scripts/run_telemetry_as_googletest.py',
           # The following represent the actual tests.
           '../content/test/gpu/',
         ],
         'command': [
           '../testing/scripts/run_telemetry_as_googletest.py',
           '../content/test/gpu/run_unittests.py',
           '-v',
         ],
       },
     }],
   ]
 }