Move //components/metrics/compression_utils into standalone component

components/metrics.gypi

 # Copyright 2014 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/metrics
       'target_name': 'metrics',
       'type': 'static_library',
       'include_dirs': [
         '..',
       ],
       'dependencies': [
         '../base/base.gyp:base',
         '../base/base.gyp:base_i18n',
         '../base/base.gyp:base_prefs',
-        '../third_party/zlib/zlib.gyp:zlib',
         'component_metrics_proto',
+        'compression',
         'variations',
       ],
       'export_dependent_settings': [
         'component_metrics_proto',
       ],
       'sources': [
         'metrics/call_stack_profile_metrics_provider.cc',
         'metrics/call_stack_profile_metrics_provider.h',
         'metrics/clean_exit_beacon.cc',
         'metrics/clean_exit_beacon.h',
         'metrics/client_info.cc',
         'metrics/client_info.h',
         'metrics/cloned_install_detector.cc',
         'metrics/cloned_install_detector.h',
-        'metrics/compression_utils.cc',
-        'metrics/compression_utils.h',
         'metrics/daily_event.cc',
         'metrics/daily_event.h',
         'metrics/drive_metrics_provider.cc',
         'metrics/drive_metrics_provider.h',
         'metrics/drive_metrics_provider_android.cc',
         'metrics/drive_metrics_provider_ios.mm',
         'metrics/drive_metrics_provider_linux.cc',
         'metrics/drive_metrics_provider_mac.mm',
         'metrics/drive_metrics_provider_win.cc',
         'metrics/histogram_encoder.cc',
@@ skipping 176 matching lines @@
             'metrics/serialization/serialization_utils.h',
           ],
           'dependencies': [
             '../base/base.gyp:base',
           ],
         },
       ],
     }],
   ],
 }