Mention NSPR libs in NSS version check error message.

base/nss_util.cc

 // Copyright (c) 2008-2010 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 "base/nss_util.h"
 
 #include <nss.h>
 #include <plarena.h>
 #include <prerror.h>
 #include <prinit.h>
@@ skipping 71 matching lines @@
     base::EnsureNSPRInit();
 
     // We *must* have NSS >= 3.12.3.  See bug 26448.
     COMPILE_ASSERT(
         (NSS_VMAJOR == 3 && NSS_VMINOR == 12 && NSS_VPATCH >= 3) ||
         (NSS_VMAJOR == 3 && NSS_VMINOR > 12) ||
         (NSS_VMAJOR > 3),
         nss_version_check_failed);
     // Also check the run-time NSS version.
     // NSS_VersionCheck is a >= check, not strict equality.
-    CHECK(NSS_VersionCheck("3.12.3")) << "We depend on NSS >= 3.12.3";
+    CHECK(NSS_VersionCheck("3.12.3")) << "We depend on NSS >= 3.12.3. "
+                                         "If NSS is up to date, please "
+                                         "update NSPR to the latest version.";
 
     SECStatus status = SECFailure;
 #if defined(USE_NSS_FOR_SSL_ONLY)
     // Use the system certificate store, so initialize NSS without database.
     status = NSS_NoDB_Init(NULL);
     if (status != SECSuccess) {
       LOG(ERROR) << "Error initializing NSS without a persistent "
                     "database: NSS error code " << PR_GetError();
     }
 #else
@@ skipping 79 matching lines @@
   exploded.day_of_month = prxtime.tm_mday;
   exploded.hour         = prxtime.tm_hour;
   exploded.minute       = prxtime.tm_min;
   exploded.second       = prxtime.tm_sec;
   exploded.millisecond  = prxtime.tm_usec / 1000;
 
   return Time::FromUTCExploded(exploded);
 }
 
 }  // namespace base