Move thumbnail to history component

chrome/chrome_common.gypi

 # Copyright (c) 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.
 
 {
   'targets': [
     {
       'target_name': 'common',
       'type': 'static_library',
       'variables': {
@@ skipping 280 matching lines @@
         'common/service_process_util_posix.cc',
         'common/service_process_util_posix.h',
         'common/service_process_util_win.cc',
         'common/spellcheck_common.cc',
         'common/spellcheck_common.h',
         'common/spellcheck_marker.h',
         'common/spellcheck_messages.h',
         'common/spellcheck_result.h',
         'common/switch_utils.cc',
         'common/switch_utils.h',
-        'common/thumbnail_score.cc',
-        'common/thumbnail_score.h',
         'common/tts_messages.h',
         'common/tts_utterance_request.cc',
         'common/tts_utterance_request.h',
         'common/url_constants.cc',
         'common/url_constants.h',
         'common/variations/experiment_labels.cc',
         'common/variations/experiment_labels.h',
         'common/variations/uniformity_field_trials.cc',
         'common/variations/uniformity_field_trials.h',
         'common/variations/variations_util.cc',
@@ skipping 376 matching lines @@
         'common/metrics/proto/chrome_experiments.proto',
       ],
       'variables': {
         'proto_in_dir': 'common/metrics/proto',
         'proto_out_dir': 'chrome/common/metrics/proto',
       },
       'includes': [ '../build/protoc.gypi' ],
     },
   ],
 }