[Cleanup] Remove StringPrintf from global namespace

chrome/browser/component_updater/component_unpacker.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 "chrome/browser/component_updater/component_unpacker.h"
 
 #include <string>
 #include <vector>
 
 #include "base/file_util.h"
@@ skipping 118 matching lines @@
   scoped_ptr<SecureHash> sha256(SecureHash::Create(SecureHash::SHA256));
   sha256->Update(&(validator.public_key()[0]), validator.public_key().size());
   sha256->Finish(hash, arraysize(hash));
 
   if (!std::equal(pk_hash.begin(), pk_hash.end(), hash)) {
     error_ = kInvalidId;
     return;
   }
   // We want the temporary directory to be unique and yet predictable, so
   // we can easily find the package in a end user machine.
-  std::string dir(StringPrintf("CRX_%s", base::HexEncode(hash, 6).c_str()));
+  std::string dir(
+      base::StringPrintf("CRX_%s", base::HexEncode(hash, 6).c_str()));
   unpack_path_ = path.DirName().AppendASCII(dir.c_str());
   if (file_util::DirectoryExists(unpack_path_)) {
     if (!file_util::Delete(unpack_path_, true)) {
       unpack_path_.clear();
       error_ = kUzipPathError;
       return;
     }
   }
   if (!file_util::CreateDirectory(unpack_path_)) {
     unpack_path_.clear();
@@ skipping 15 matching lines @@
   }
   // Installation successful. The directory is not our concern now.
   unpack_path_.clear();
 }
 
 ComponentUnpacker::~ComponentUnpacker() {
   if (!unpack_path_.empty()) {
     file_util::Delete(unpack_path_, true);
   }
 }