[Cleanup] Remove StringPrintf from global namespace

printing/printed_document.cc

 // Copyright (c) 2011 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 "printing/printed_document.h"
 
 #include <algorithm>
 #include <set>
 #include <string>
 #include <vector>
@@ skipping 161 matching lines @@
   return mutable_.expected_page_count_;
 }
 
 void PrintedDocument::DebugDump(const PrintedPage& page) {
   if (!g_debug_dump_info.Get().enabled)
     return;
 
   string16 filename;
   filename += name();
   filename += ASCIIToUTF16("_");
-  filename += ASCIIToUTF16(StringPrintf("%02d", page.page_number()));
+  filename += ASCIIToUTF16(base::StringPrintf("%02d", page.page_number()));
 #if defined(OS_WIN)
   filename += ASCIIToUTF16("_.emf");
   page.metafile()->SaveTo(
       g_debug_dump_info.Get().debug_dump_path.Append(filename));
 #else  // OS_WIN
   filename += ASCIIToUTF16("_.pdf");
   page.metafile()->SaveTo(
       g_debug_dump_info.Get().debug_dump_path.Append(UTF16ToUTF8(filename)));
 #endif  // OS_WIN
 }
@@ skipping 33 matching lines @@
 }
 
 #if defined(OS_POSIX) && defined(USE_AURA)
 // This function is not used on aura linux/chromeos.
 void PrintedDocument::RenderPrintedPage(const PrintedPage& page,
                                         PrintingContext* context) const {
 }
 #endif
 
 }  // namespace printing