Migrate page_load_metrics out of components.

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.
 
 {
   'variables': {
     # File lists shared with GN build.
     'chrome_common_sources': [
       'common/all_messages.h',
       'common/attrition_experiments.h',
@@ skipping 46 matching lines @@
       'common/media/webrtc_logging_message_data.cc',
       'common/media/webrtc_logging_message_data.h',
       'common/media/webrtc_logging_messages.h',
       'common/media_galleries/metadata_types.h',
       'common/multi_process_lock.h',
       'common/multi_process_lock_linux.cc',
       'common/multi_process_lock_mac.cc',
       'common/multi_process_lock_win.cc',
       'common/origin_trials/chrome_origin_trial_policy.cc',
       'common/origin_trials/chrome_origin_trial_policy.h',
+      'common/page_load_metrics/page_load_metrics_messages.h',
+      'common/page_load_metrics/page_load_timing.cc',
+      'common/page_load_metrics/page_load_timing.h',
       'common/partial_circular_buffer.cc',
       'common/partial_circular_buffer.h',
       'common/pref_names_util.cc',
       'common/pref_names_util.h',
       'common/prerender_types.h',
       'common/profiling.cc',
       'common/profiling.h',
       'common/ref_counted_util.h',
       'common/render_messages.cc',
       'common/render_messages.h',
@@ skipping 628 matching lines @@
           ],
           'dependencies': [
             'installer_util',
             '../base/base.gyp:base',
           ],
         },
       ],
     }],
   ],
 }