Remove unneeded stringprintf.h usage in chrome/ and net/

chrome/browser/ui/webui/ntp/ntp_user_data_logger.cc

 // Copyright 2013 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/ui/webui/ntp/ntp_user_data_logger.h"
 
 #include <algorithm>
 #include <string>
 
 #include "base/metrics/histogram_macros.h"
-#include "base/strings/stringprintf.h"
 #include "chrome/browser/after_startup_task_utils.h"
 #include "chrome/browser/profiles/profile.h"
 #include "chrome/browser/search/search.h"
 #include "chrome/browser/sync/profile_sync_service_factory.h"
 #include "chrome/common/search/search_urls.h"
 #include "chrome/common/url_constants.h"
 #include "components/browser_sync/profile_sync_service.h"
 #include "components/ntp_tiles/metrics.h"
 #include "components/sync_sessions/sessions_sync_manager.h"
 #include "components/sync_sessions/sync_sessions_metrics.h"
@@ skipping 171 matching lines @@
   std::string source = ntp_url_.SchemeIsHTTPOrHTTPS() ? "Web" : "LocalNTP";
   LogLoadTimeHistogram("NewTabPage.LoadTime." + source, load_time);
 
   // Split between Startup and non-startup.
   std::string status = during_startup_ ? "Startup" : "NewTab";
   LogLoadTimeHistogram("NewTabPage.LoadTime." + status, load_time);
 
   has_emitted_ = true;
   during_startup_ = false;
 }