Implement UMA log throttling for cellular connections

chrome/browser/browser_process_impl.cc

 // 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.
 
 #include "chrome/browser/browser_process_impl.h"
 
 #include <stddef.h>
 #include <algorithm>
 #include <map>
 #include <utility>
@@ skipping 828 matching lines @@
 #endif  // defined(OS_CHROMEOS)
 
 #if defined(ENABLE_REPORTING_BLIMP)
   // Enables reporting for the (headless) blimp engine. Defined in
   // components/metrics/BUILD.gn
   registry->RegisterBooleanPref(metrics::prefs::kMetricsReportingEnabled, true);
 #else
   registry->RegisterBooleanPref(metrics::prefs::kMetricsReportingEnabled,
                                 GoogleUpdateSettings::GetCollectStatsConsent());
 #endif // defined(ENABLE_REPORTING_HEADLESS)
+  registry->RegisterDictionaryPref(metrics::prefs::kUserCellDataUse);
+  registry->RegisterDictionaryPref(metrics::prefs::kUmaCellDataUse);

[Alexei Svitkine (slow), 2016/03/18 22:23:29]

Suggest adding a MetricsDataUseMeasurements::RegisterPrefs function and doing
this from there.

[gayane -on leave until 09-2017, 2016/03/29 16:06:20]

Done.

 
 #if BUILDFLAG(ANDROID_JAVA_UI)
   registry->RegisterBooleanPref(
       prefs::kCrashReportingEnabled, false);
 #endif  // BUILDFLAG(ANDROID_JAVA_UI)
 }
 
 DownloadRequestLimiter* BrowserProcessImpl::download_request_limiter() {
   DCHECK(CalledOnValidThread());
   if (!download_request_limiter_.get())
@@ skipping 436 matching lines @@
 }
 
 void BrowserProcessImpl::OnAutoupdateTimer() {
   if (CanAutorestartForUpdate()) {
     DLOG(WARNING) << "Detected update.  Restarting browser.";
     RestartBackgroundInstance();
   }
 }
 
 #endif  // (defined(OS_WIN) || defined(OS_LINUX)) && !defined(OS_CHROMEOS)