Add histograms for network activity, and total/cumulative

chrome/chrome_browser.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': [
     {
       'target_name': 'browser',
       'type': 'static_library',
@@ skipping 1467 matching lines @@
         'browser/metrics/metrics_service.cc',
         'browser/metrics/metrics_service.h',
         'browser/metrics/thread_watcher.cc',
         'browser/metrics/thread_watcher.h',
         'browser/metrics/tracking_synchronizer.cc',
         'browser/metrics/tracking_synchronizer.h',
         'browser/metrics/tracking_synchronizer_observer.h',
         'browser/metrics/variations/variations_service.cc',
         'browser/metrics/variations/variations_service.h',
         'browser/native_window_notification_source.h',
-        'browser/net/cache_stats.cc',
-        'browser/net/cache_stats.h',
         'browser/net/chrome_cookie_notification_details.h',
         'browser/net/chrome_fraudulent_certificate_reporter.cc',
         'browser/net/chrome_fraudulent_certificate_reporter.h',
         'browser/net/chrome_net_log.cc',
         'browser/net/chrome_net_log.h',
         'browser/net/chrome_network_delegate.cc',
         'browser/net/chrome_network_delegate.h',
         'browser/net/chrome_url_request_context.cc',
         'browser/net/chrome_url_request_context.h',
         'browser/net/clear_on_exit_policy.cc',
         'browser/net/clear_on_exit_policy.h',
         'browser/net/connect_interceptor.cc',
         'browser/net/connect_interceptor.h',
         'browser/net/connection_tester.cc',
         'browser/net/connection_tester.h',
         'browser/net/crl_set_fetcher.cc',
         'browser/net/crl_set_fetcher.h',
         'browser/net/gaia/gaia_oauth_consumer.h',
         'browser/net/gaia/gaia_oauth_fetcher.cc',
         'browser/net/gaia/gaia_oauth_fetcher.h',
         'browser/net/load_timing_observer.cc',
         'browser/net/load_timing_observer.h',
         'browser/net/http_pipelining_compatibility_client.cc',
         'browser/net/http_pipelining_compatibility_client.h',
         'browser/net/http_server_properties_manager.h',
         'browser/net/http_server_properties_manager.cc',
+        'browser/net/load_time_stats.cc',
+        'browser/net/load_time_stats.h',
         'browser/net/net_log_logger.cc',
         'browser/net/net_log_logger.h',
         'browser/net/net_pref_observer.cc',
         'browser/net/net_pref_observer.h',
         'browser/net/network_stats.cc',
         'browser/net/network_stats.h',
         'browser/net/preconnect.cc',
         'browser/net/preconnect.h',
         'browser/net/predictor.cc',
         'browser/net/predictor.h',
@@ skipping 4079 matching lines @@
           'includes': [ '../build/jni_generator.gypi' ],
           'dependencies': [
             'android_jar_jni_headers',
           ],
         },
       ],
      },
     ],
   ],
 }