[sync] Componentize sync: Part 1: Clean up sync.gyp and update chrome / test dependencies

chrome/chrome_tests_unit.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.
 {
   'targets': [
     {
       # This target contains mocks and test utilities that don't belong in
       # production libraries but are used by more than one test executable.
       'target_name': 'test_support_common',
       'type': 'static_library',
@@ skipping 342 matching lines @@
         # 2) test-specific support libraries:
         '../base/base.gyp:test_support_base',
         '../gpu/gpu.gyp:gpu_unittest_utils',
         '../media/media.gyp:media_test_support',
         '../net/net.gyp:net',
         '../net/net.gyp:net_test_support',
         '../ppapi/ppapi_internal.gyp:ppapi_unittest_shared',
         '../testing/gmock.gyp:gmock',
         '../testing/gtest.gyp:gtest',
         'test_support_common',
-        '../sync/sync.gyp:test_support_sync',
+        '../sync/sync.gyp:test_support_sync_api',
+        '../sync/sync.gyp:test_support_sync_core',
+        '../sync/sync.gyp:test_support_sync_internal_api',
         '../sync/sync.gyp:test_support_sync_notifier',
-        '../sync/sync.gyp:test_support_syncapi_core',
-        '../sync/sync.gyp:test_support_syncapi_service',
         'test_support_unit',
         # 3) anything tests directly depend on
         '../google_apis/google_apis.gyp:google_apis',
         '../skia/skia.gyp:skia',
         '../third_party/bzip2/bzip2.gyp:bzip2',
         '../third_party/cacheinvalidation/cacheinvalidation.gyp:cacheinvalidation',
         '../third_party/cld/cld.gyp:cld',
         '../third_party/icu/icu.gyp:icui18n',
         '../third_party/icu/icu.gyp:icuuc',
         '../third_party/leveldatabase/leveldatabase.gyp:leveldatabase',
@@ skipping 1824 matching lines @@
             'unit_tests.isolate',
           ],
           'sources': [
             'unit_tests.isolate',
           ],
         },
       ],
     }],
   ],  # 'conditions'
 }