[Sync] Have SyncableService's take ownership of their SyncChangeProcessor.

chrome/chrome_tests.gypi

 # Copyright (c) 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' : {
     'pyautolib_sources': [
       'app/chrome_command_ids.h',
       'app/chrome_dll_resource.h',
       'common/automation_constants.h',
       'common/pref_names.cc',
@@ skipping 395 matching lines @@
       'export_dependent_settings': [
         '../testing/gmock.gyp:gmock',
         'syncapi_service',
       ],
       'include_dirs': [
         '..',
       ],
       'sources': [
         'browser/sync/api/fake_syncable_service.cc',
         'browser/sync/api/fake_syncable_service.h',
-        'browser/sync/api/syncable_service_mock.cc',
-        'browser/sync/api/syncable_service_mock.h',
       ],
     },
     {
       'target_name': 'test_support_sync_notifier',
       'type': 'static_library',
       'dependencies': [
         '../testing/gmock.gyp:gmock',
         'sync_notifier',
       ],
       'include_dirs': [
@@ skipping 4166 matching lines @@
               # Use outputs of this action as inputs for the main target build.
               # Seems as a misnomer but makes this happy on Linux (scons).
               'process_outputs_as_sources': 1,
             },
           ],  # 'actions'
         },
       ]
     }],  # 'coverage!=0'
   ],  # 'conditions'
 }