Introduce a layering in the invalidation component as public and impl

chrome/chrome_tests.gypi

 # 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': {
     'chrome_browser_extensions_test_support_sources': [
       # A list of sources which is shared between different browser tests.
       'browser/apps/app_browsertest_util.cc',
       'browser/apps/app_browsertest_util.h',
       'browser/extensions/browsertest_util.cc',
@@ skipping 2655 matching lines @@
     },  # target performance_browser_tests
     {
       # GN version: //chrome/test:sync_integration_test_support
       'target_name': 'test_support_sync_integration',
       'type': 'static_library',
       'dependencies': [
         'browser',
         'chrome',
         'test_support_common',
         '../base/base.gyp:base',
-        '../components/components.gyp:invalidation',
+        '../components/components.gyp:invalidation_impl',
         '../components/components.gyp:invalidation_test_support',
         '../net/net.gyp:net',
         '../skia/skia.gyp:skia',
         '../sync/sync.gyp:sync',
         '../sync/sync.gyp:test_support_sync_testserver',
         '../sync/sync.gyp:test_support_sync_fake_server',
         '../ui/app_list/app_list.gyp:app_list_test_support',
       ],
       'include_dirs': [
         '..',
@@ skipping 608 matching lines @@
             'utility',
           ],
           'sources': [
             'tools/service_discovery_sniffer/service_discovery_sniffer.cc',
             'tools/service_discovery_sniffer/service_discovery_sniffer.h',
           ],
         }]
     }],
   ],  # 'conditions'
 }