Avoid double initializing reporting_service_

components/metrics/metrics_service.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.
 
 //------------------------------------------------------------------------------
 // Description of the life cycle of a instance of MetricsService.
 //
 //  OVERVIEW
 //
 // A MetricsService instance is typically created at application startup.  It is
@@ skipping 483 matching lines @@
 
   bool version_changed = false;
   EnvironmentRecorder recorder(local_state_);
   int64_t previous_buildtime = recorder.GetLastBuildtime();
   std::string previous_version = recorder.GetLastVersion();
   if (previous_buildtime != buildtime || previous_version != version) {
     recorder.SetBuildtimeAndVersion(buildtime, version);
     version_changed = true;
   }
 
-  reporting_service_.Initialize();
-
   session_id_ = local_state_->GetInteger(prefs::kMetricsSessionID);
 
   StabilityMetricsProvider provider(local_state_);
   if (!clean_exit_beacon_.exited_cleanly()) {
     provider.LogCrash();
     // Reset flag, and wait until we call LogNeedForCleanShutdown() before
     // monitoring.
     clean_exit_beacon_.WriteBeaconValue(true);
     ExecutionPhaseManager manager(local_state_);
     UMA_HISTOGRAM_SPARSE_SLOWLY("Chrome.Browser.CrashedExecutionPhase",
@@ skipping 482 matching lines @@
   // Redundant setting to assure that we always reset this value at shutdown
   // (and that we don't use some alternate path, and not call LogCleanShutdown).
   clean_shutdown_status_ = CLEANLY_SHUTDOWN;
   client_->OnLogCleanShutdown();
   clean_exit_beacon_.WriteBeaconValue(true);
   SetExecutionPhase(ExecutionPhase::SHUTDOWN_COMPLETE, local_state_);
   StabilityMetricsProvider(local_state_).MarkSessionEndCompleted(end_completed);
 }
 
 }  // namespace metrics