Add logging to profile downloader to diagnose Android FR issue.

components/signin/core/browser/account_fetcher_service.cc

 // Copyright 2015 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 "components/signin/core/browser/account_fetcher_service.h"
 
 #include "base/command_line.h"
 #include "base/metrics/field_trial.h"
 #include "base/prefs/pref_service.h"
 #include "base/profiler/scoped_tracker.h"
@@ skipping 101 matching lines @@
   // Now that network fetches are enabled, schedule the next refresh.
   ScheduleNextRefresh();
 }
 
 bool AccountFetcherService::IsAllUserInfoFetched() const {
   return user_info_requests_.empty();
 }
 
 void AccountFetcherService::FetchUserInfoBeforeSignin(
     const std::string& account_id) {
+  LOG(WARNING) << "Fetching account info before signin for account id: "
+               << account_id;
   RefreshAccountInfo(account_id, false);
 }
 
 void AccountFetcherService::RefreshAllAccountInfo(bool only_fetch_if_invalid) {
   std::vector<std::string> accounts = token_service_->GetAccounts();
   for (std::vector<std::string>::const_iterator it = accounts.begin();
        it != accounts.end(); ++it) {
     RefreshAccountInfo(*it, only_fetch_if_invalid);
   }
 }
@@ skipping 181 matching lines @@
   UpdateChildInfo();
   account_tracker_service_->StopTrackingAccount(account_id);
 }
 
 void AccountFetcherService::OnRefreshTokensLoaded() {
   // OnRefreshTokenAvailable has been called for all accounts by this point.
   // Maybe remove this after further investigation.
   RefreshAllAccountInfo(true);
   UpdateChildInfo();
 }