[Cleanup] Remove StringPrintf from global namespace

ui/base/x/x11_util.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.
 
 // This file defines utility functions for X11 (Linux only). This code has been
 // ported from XCB since we can't use XCB on Ubuntu while its 32-bit support
 // remains woefully incomplete.
 
 #include "ui/base/x/x11_util.h"
 
@@ skipping 1775 matching lines @@
         dpy, "XRequest", num.c_str(), "Unknown", request_str,
         sizeof(request_str));
   } else {
     int num_ext;
     char** ext_list = XListExtensions(dpy, &num_ext);
 
     for (int i = 0; i < num_ext; i++) {
       int ext_code, first_event, first_error;
       XQueryExtension(dpy, ext_list[i], &ext_code, &first_event, &first_error);
       if (error_event.request_code == ext_code) {
-        std::string msg = StringPrintf(
+        std::string msg = base::StringPrintf(
             "%s.%d", ext_list[i], error_event.minor_code);
         XGetErrorDatabaseText(
             dpy, "XRequest", msg.c_str(), "Unknown", request_str,
             sizeof(request_str));
         break;
       }
     }
     XFreeExtensionList(ext_list);
   }
 
   LOG(ERROR)
       << "X error received: "
       << "serial " << error_event.serial << ", "
       << "error_code " << static_cast<int>(error_event.error_code)
       << " (" << error_str << "), "
       << "request_code " << static_cast<int>(error_event.request_code) << ", "
       << "minor_code " << static_cast<int>(error_event.minor_code)
       << " (" << request_str << ")";
 }
 
 // ----------------------------------------------------------------------------
 // End of x11_util_internal.h
 
 
 }  // namespace ui