[Cleanup] Remove StringPrintf from global namespace

content/common/content_param_traits.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/common/content_param_traits.h"
 
 #include "base/string_number_conversions.h"
 #include "net/base/ip_endpoint.h"
 #include "third_party/WebKit/Source/WebKit/chromium/public/WebBindings.h"
 #include "webkit/glue/npruntime_util.h"
@@ skipping 111 matching lines @@
              (r->type == content::NPVARIANT_PARAM_NULL)) {
     result = true;
   } else {
     NOTREACHED();
   }
 
   return result;
 }
 
 void ParamTraits<NPVariant_Param>::Log(const param_type& p, std::string* l) {
-  l->append(StringPrintf("NPVariant_Param(%d, ", static_cast<int>(p.type)));
+  l->append(
+      base::StringPrintf("NPVariant_Param(%d, ", static_cast<int>(p.type)));
   if (p.type == content::NPVARIANT_PARAM_BOOL) {
     LogParam(p.bool_value, l);
   } else if (p.type == content::NPVARIANT_PARAM_INT) {
     LogParam(p.int_value, l);
   } else if (p.type == content::NPVARIANT_PARAM_DOUBLE) {
     LogParam(p.double_value, l);
   } else if (p.type == content::NPVARIANT_PARAM_STRING) {
     LogParam(p.string_value, l);
   } else if (p.type == content::NPVARIANT_PARAM_SENDER_OBJECT_ROUTING_ID ||
              p.type == content::NPVARIANT_PARAM_RECEIVER_OBJECT_ROUTING_ID) {
@@ skipping 102 matching lines @@
 #undef CONTENT_COMMON_CONTENT_PARAM_TRAITS_MACROS_H_
 #include "content/common/content_param_traits_macros.h"
 }  // namespace IPC
 
 // Generate param traits log methods.
 #include "ipc/param_traits_log_macros.h"
 namespace IPC {
 #undef CONTENT_COMMON_CONTENT_PARAM_TRAITS_MACROS_H_
 #include "content/common/content_param_traits_macros.h"
 }  // namespace IPC