Revert 209515 "Reland http://crrev.com/209278"

trunk/src/crypto/nss_util.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 "crypto/nss_util.h"
 #include "crypto/nss_util_internal.h"
 
 #include <nss.h>
 #include <pk11pub.h>
 #include <plarena.h>
@@ skipping 366 matching lines @@
       : tpm_token_enabled_for_nss_(false),
         chaps_module_(NULL),
         software_slot_(NULL),
         test_slot_(NULL),
         tpm_slot_(NULL),
         root_(NULL),
         chromeos_user_logged_in_(false) {
     base::TimeTicks start_time = base::TimeTicks::Now();
     EnsureNSPRInit();
 
-    // We *must* have NSS >= 3.14.3.
+    // We *must* have NSS >= 3.12.3.  See bug 26448.
     COMPILE_ASSERT(
-        (NSS_VMAJOR == 3 && NSS_VMINOR == 14 && NSS_VPATCH >= 3) ||
-        (NSS_VMAJOR == 3 && NSS_VMINOR > 14) ||
+        (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.
-    if (!NSS_VersionCheck("3.14.3")) {
-      LOG(FATAL) << "NSS_VersionCheck(\"3.14.3\") failed. NSS >= 3.14.3 is "
-                    "required. Please upgrade to the latest NSS, and if you "
+    if (!NSS_VersionCheck("3.12.3")) {
+      // It turns out many people have misconfigured NSS setups, where
+      // their run-time NSPR doesn't match the one their NSS was compiled
+      // against.  So rather than aborting, complain loudly.
+      LOG(ERROR) << "NSS_VersionCheck(\"3.12.3\") failed.  "
+                    "We depend on NSS >= 3.12.3, and this error is not fatal "
+                    "only because many people have busted NSS setups (for "
+                    "example, using the wrong version of NSPR). "
+                    "Please upgrade to the latest NSS and NSPR, and if you "
                     "still get this error, contact your distribution "
                     "maintainer.";
     }
 
     SECStatus status = SECFailure;
     bool nodb_init = force_nodb_init_;
 
 #if !defined(USE_NSS)
     // Use the system certificate store, so initialize NSS without database.
     nodb_init = true;
@@ skipping 354 matching lines @@
 
 PK11SlotInfo* GetPublicNSSKeySlot() {
   return g_nss_singleton.Get().GetPublicNSSKeySlot();
 }
 
 PK11SlotInfo* GetPrivateNSSKeySlot() {
   return g_nss_singleton.Get().GetPrivateNSSKeySlot();
 }
 
 }  // namespace crypto