[Cleanup] Remove StringPrintf from global namespace

net/base/crl_set.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 "base/base64.h"
 #include "base/format_macros.h"
 #include "base/json/json_reader.h"
 #include "base/logging.h"
 #include "base/stl_util.h"
 #include "base/string_util.h"
@@ skipping 441 matching lines @@
   } else if (contents == "CRLSetDelta") {
     *is_delta = true;
   } else {
     return false;
   }
 
   return true;
 }
 
 std::string CRLSet::Serialize() const {
-  std::string header = StringPrintf(
+  std::string header = base::StringPrintf(
       "{"
       "\"Version\":0,"
       "\"ContentType\":\"CRLSet\","
       "\"Sequence\":%u,"
       "\"DeltaFrom\":0,"
       "\"NumParents\":%u,"
       "\"BlockedSPKIs\":[",
       static_cast<unsigned>(sequence_),
       static_cast<unsigned>(crls_.size()));
 
   for (std::vector<std::string>::const_iterator i = blocked_spkis_.begin();
        i != blocked_spkis_.end(); ++i) {
     std::string spki_hash_base64;
     base::Base64Encode(*i, &spki_hash_base64);
 
     if (i != blocked_spkis_.begin())
       header += ",";
     header += "\"" + spki_hash_base64 + "\"";
   }
   header += "]";
   if (not_after_ != 0)
-    header += StringPrintf(",\"NotAfter\":%" PRIu64, not_after_);
+    header += base::StringPrintf(",\"NotAfter\":%" PRIu64, not_after_);
   header += "}";
 
   size_t len = 2 /* header len */ + header.size();
 
   for (CRLList::const_iterator i = crls_.begin(); i != crls_.end(); ++i) {
     len += i->first.size() + 4 /* num serials */;
     for (std::vector<std::string>::const_iterator j = i->second.begin();
          j != i->second.end(); ++j) {
       len += 1 /* serial length */ + j->size();
     }
@@ skipping 89 matching lines @@
   return new CRLSet;
 }
 
 CRLSet* CRLSet::ExpiredCRLSetForTesting() {
   CRLSet* crl_set = new CRLSet;
   crl_set->not_after_ = 1;
   return crl_set;
 }
 
 }  // namespace net