[Cleanup] Remove StringPrintf from global namespace

content/browser/download/download_file_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 "content/browser/download/download_file_impl.h"
 
 #include <string>
 
 #include "base/bind.h"
 #include "base/file_util.h"
@@ skipping 94 matching lines @@
     const base::FilePath& full_path,
     const RenameCompletionCallback& callback) {
   DCHECK(BrowserThread::CurrentlyOn(BrowserThread::FILE));
 
   base::FilePath new_path(full_path);
 
   int uniquifier =
       file_util::GetUniquePathNumber(new_path, FILE_PATH_LITERAL(""));
   if (uniquifier > 0) {
     new_path = new_path.InsertBeforeExtensionASCII(
-        StringPrintf(" (%d)", uniquifier));
+        base::StringPrintf(" (%d)", uniquifier));
   }
 
   DownloadInterruptReason reason = file_.Rename(new_path);
   if (reason != DOWNLOAD_INTERRUPT_REASON_NONE) {
     // Make sure our information is updated, since we're about to
     // error out.
     SendUpdate();
 
     // Null out callback so that we don't do any more stream processing.
     stream_reader_->RegisterCallback(base::Closure());
@@ skipping 182 matching lines @@
       base::Bind(&DownloadDestinationObserver::DestinationUpdate,
                  observer_, BytesSoFar(), CurrentSpeed(), GetHashState()));
 }
 
 // static
 int DownloadFile::GetNumberOfDownloadFiles() {
   return number_active_objects_;
 }
 
 }  // namespace content