[Clean-up] Remove NetworkStats code, which has been dead code since July 2014.

chrome/browser/metrics/chrome_metrics_service_client.cc

 // 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.
 
 #include "chrome/browser/metrics/chrome_metrics_service_client.h"
 
 #include <vector>
 
 #include "base/bind.h"
 #include "base/callback.h"
 #include "base/command_line.h"
 #include "base/files/file_path.h"
 #include "base/logging.h"
 #include "base/metrics/field_trial.h"
 #include "base/metrics/histogram.h"
 #include "base/prefs/pref_registry_simple.h"
 #include "base/prefs/pref_service.h"
 #include "base/strings/string16.h"
 #include "base/strings/string_util.h"
 #include "base/strings/utf_string_conversions.h"
 #include "base/threading/platform_thread.h"
 #include "chrome/browser/browser_process.h"
 #include "chrome/browser/chrome_notification_types.h"
 #include "chrome/browser/google/google_brand.h"
 #include "chrome/browser/metrics/chrome_stability_metrics_provider.h"
 #include "chrome/browser/metrics/drive_metrics_provider.h"
 #include "chrome/browser/metrics/omnibox_metrics_provider.h"
+#include "chrome/browser/metrics/time_ticks_experiment_win.h"
 #include "chrome/browser/ui/browser_otr_state.h"
 #include "chrome/common/chrome_constants.h"
 #include "chrome/common/chrome_switches.h"
 #include "chrome/common/chrome_version_info.h"
 #include "chrome/common/crash_keys.h"
 #include "chrome/common/pref_names.h"
 #include "chrome/common/render_messages.h"
 #include "components/metrics/call_stack_profile_metrics_provider.h"
 #include "components/metrics/gpu/gpu_metrics_provider.h"
 #include "components/metrics/metrics_service.h"
 #include "components/metrics/net/net_metrics_log_uploader.h"

[ramant (doing other things), 2015/03/25 19:24:27]

We could delete #include "components/metrics/net/net_metrics_log_uploader.h"

[Ilya Sherman, 2015/03/25 21:12:03]

Done.

 #include "components/metrics/net/network_metrics_provider.h"
 #include "components/metrics/profiler/profiler_metrics_provider.h"
 #include "components/metrics/profiler/tracking_synchronizer.h"
 #include "components/metrics/url_constants.h"
 #include "content/public/browser/browser_thread.h"
 #include "content/public/browser/histogram_fetcher.h"
 #include "content/public/browser/notification_service.h"
 #include "content/public/browser/render_process_host.h"
 
 #if defined(OS_ANDROID)
@@ skipping 164 matching lines @@
   std::string version = version_info.Version();
 #if defined(ARCH_CPU_64_BITS)
   version += "-64";
 #endif  // defined(ARCH_CPU_64_BITS)
   if (!version_info.IsOfficialBuild())
     version.append("-devel");
   return version;
 }
 
 void ChromeMetricsServiceClient::OnLogUploadComplete() {
-  // Collect network stats after each UMA upload.
-  network_stats_uploader_.CollectAndReportNetworkStats();
+  // Collect time ticks stats after each UMA upload.
+#if defined(OS_WIN)
+  chrome::CollectTimeTicksStats();
+#endif
 }
 
 void ChromeMetricsServiceClient::StartGatheringMetrics(
     const base::Closure& done_callback) {
   finished_gathering_initial_metrics_callback_ = done_callback;
   base::Closure got_hardware_class_callback =
       base::Bind(&ChromeMetricsServiceClient::OnInitTaskGotHardwareClass,
                  weak_ptr_factory_.GetWeakPtr());
 #if defined(OS_CHROMEOS)
   chromeos_metrics_provider_->InitTaskGetHardwareClass(
@@ skipping 369 matching lines @@
   // Capture the histogram samples.
   if (dumps_with_crash != 0)
     UMA_HISTOGRAM_COUNTS("Chrome.BrowserDumpsWithCrash", dumps_with_crash);
   if (dumps_with_no_crash != 0)
     UMA_HISTOGRAM_COUNTS("Chrome.BrowserDumpsWithNoCrash", dumps_with_no_crash);
   int total_dumps = dumps_with_crash + dumps_with_no_crash;
   if (total_dumps != 0)
     UMA_HISTOGRAM_COUNTS("Chrome.BrowserCrashDumpAttempts", total_dumps);
 }
 #endif  // defined(OS_WIN)