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

chrome/browser/chromeos/extensions/file_manager/private_api_file_system.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/chromeos/extensions/file_manager/private_api_file_system.h"
 
 #include <sys/statvfs.h>
 
 #include <algorithm>
 #include <set>
 #include <utility>
 #include <vector>
 
 #include "base/files/file_util.h"
 #include "base/memory/ptr_util.h"
 #include "base/memory/weak_ptr.h"
 #include "base/posix/eintr_wrapper.h"
 #include "base/strings/string_number_conversions.h"
 #include "base/strings/string_util.h"
-#include "base/strings/stringprintf.h"
 #include "base/sys_info.h"
 #include "base/task_runner_util.h"
 #include "base/threading/sequenced_worker_pool.h"
 #include "chrome/browser/browser_process.h"
 #include "chrome/browser/chromeos/drive/file_system_util.h"
 #include "chrome/browser/chromeos/extensions/file_manager/event_router.h"
 #include "chrome/browser/chromeos/extensions/file_manager/event_router_factory.h"
 #include "chrome/browser/chromeos/extensions/file_manager/file_stream_md5_digester.h"
 #include "chrome/browser/chromeos/extensions/file_manager/private_api_util.h"
 #include "chrome/browser/chromeos/file_manager/fileapi_util.h"
@@ skipping 967 matching lines @@
 }
 
 void FileManagerPrivateInternalGetDirectorySizeFunction::
     OnDirectorySizeRetrieved(int64_t size) {
   SetResult(
       base::MakeUnique<base::FundamentalValue>(static_cast<double>(size)));
   SendResponse(true);
 }
 
 }  // namespace extensions