Use correct IntToString variants in //chrome

chrome/common/net/x509_certificate_model_nss.cc

Index: chrome/common/net/x509_certificate_model_nss.cc
diff --git a/chrome/common/net/x509_certificate_model_nss.cc b/chrome/common/net/x509_certificate_model_nss.cc
index 7f9b3434fb7fc94128608cef810522e5ada67147..b34a86aea09f29d4ab9388a54dea297a1d5c655f 100644
--- a/chrome/common/net/x509_certificate_model_nss.cc
+++ b/chrome/common/net/x509_certificate_model_nss.cc
@@ -14,6 +14,7 @@
 #include <sechash.h>
 
 #include "base/logging.h"
+#include "base/numerics/safe_conversions.h"
 #include "base/strings/string_number_conversions.h"
 #include "chrome/third_party/mozilla_security_manager/nsNSSCertHelper.h"
 #include "chrome/third_party/mozilla_security_manager/nsNSSCertificate.h"
@@ -125,7 +126,7 @@ string GetVersion(X509Certificate::OSCertHandle cert_handle) {
   unsigned long version = 0;
   if (cert_handle->version.len == 0 ||
       SEC_ASN1DecodeInteger(&cert_handle->version, &version) == SECSuccess) {
-    return base::UintToString(version + 1);
+    return base::Uint64ToString(base::strict_cast<uint64>(version + 1));
   }
   return std::string();
 }