[Cleanup] Remove StringPrintf from global namespace

chromeos/network/network_event_log.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 "chromeos/network/network_event_log.h"
 
 #include "base/i18n/time_formatting.h"
 #include "base/logging.h"
 #include "base/memory/scoped_ptr.h"
 #include "base/stringprintf.h"
@@ skipping 31 matching lines @@
       count(1) {
 }
 
 std::string LogEntry::ToString() const {
   std::string line;
   line += "[" + UTF16ToUTF8(base::TimeFormatShortDateAndTime(time)) + "]";
   line += " " + module + ":" + event;
   if (!description.empty())
     line += ": " + description;
   if (count > 1)
-    line += StringPrintf(" (%d)", count);
+    line += base::StringPrintf(" (%d)", count);
   line += "\n";
   return line;
 }
 
 bool LogEntry::ContentEquals(const LogEntry& other) const {
   return module == other.module &&
       event == other.event &&
       description == other.description;
 }
 
@@ skipping 91 matching lines @@
 
 std::string GetAsString(StringOrder order, size_t max_events) {
   if (!g_network_event_log)
     return "NetworkEventLog not intitialized.";
   return g_network_event_log->GetAsString(order, max_events);
 }
 
 }  // namespace network_event_log
 
 }  // namespace chromeos