Componentize kExperimentLabelSeparator & BuildExperimentDateString.

components/variations.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': [
     {
       # GN version: //components/variations
       'target_name': 'variations',
       'type': 'static_library',
@@ skipping 26 matching lines @@
         'variations/processed_study.cc',
         'variations/processed_study.h',
         'variations/proto/client_variations.proto',
         'variations/proto/permuted_entropy_cache.proto',
         'variations/proto/study.proto',
         'variations/proto/variations_seed.proto',
         'variations/study_filtering.cc',
         'variations/study_filtering.h',
         'variations/variations_associated_data.cc',
         'variations/variations_associated_data.h',
+        'variations/variations_experiment_util.cc',
+        'variations/variations_experiment_util.h',
         'variations/variations_seed_processor.cc',
         'variations/variations_seed_processor.h',
         'variations/variations_seed_simulator.cc',
         'variations/variations_seed_simulator.h',
         'variations/variations_url_constants.cc',
         'variations/variations_url_constants.h',
       ],
       'variables': {
         'proto_in_dir': 'variations/proto',
         'proto_out_dir': 'components/variations/proto',
@@ skipping 55 matching lines @@
           ],
           'variables': {
             'jni_gen_package': 'variations',
           },
           'includes': [ '../build/jni_generator.gypi' ],
         },
       ],
     }],
   ]
 }