net: Append base:: in the StringPrintf calls.

net/base/pem_tokenizer.cc

 // Copyright (c) 2010 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 "net/base/pem_tokenizer.h"
 
 #include "base/base64.h"
 #include "base/string_util.h"
+#include "base/stringprintf.h"
 
 namespace {
 
 const char kPEMSearchBlock[] = "-----BEGIN ";
 const char kPEMBeginBlock[] = "-----BEGIN %s-----";
 const char kPEMEndBlock[] = "-----END %s-----";
 
 }  // namespace
 
 namespace net {
@@ skipping 69 matching lines @@
     const std::vector<std::string>& allowed_block_types) {
   str_ = str;
   pos_ = 0;
 
   // Construct PEM header/footer strings for all the accepted types, to
   // reduce parsing later.
   for (std::vector<std::string>::const_iterator it =
        allowed_block_types.begin(); it != allowed_block_types.end(); ++it) {
     PEMType allowed_type;
     allowed_type.type = *it;
-    allowed_type.header = StringPrintf(kPEMBeginBlock, it->c_str());
-    allowed_type.footer = StringPrintf(kPEMEndBlock, it->c_str());
+    allowed_type.header = base::StringPrintf(kPEMBeginBlock, it->c_str());
+    allowed_type.footer = base::StringPrintf(kPEMEndBlock, it->c_str());
     block_types_.push_back(allowed_type);
   }
 }
 
 }  // namespace net