Introduce CertVerifierProc to handle system cert validation.

net/base/test_certificate_data.h

Index: net/base/test_certificate_data.h
===================================================================
--- net/base/test_certificate_data.h	(revision 128125)
+++ net/base/test_certificate_data.h	(working copy)
@@ -1,9 +1,14 @@
-// Copyright (c) 2006-2008 The Chromium Authors. All rights reserved.
+// 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.
 
 namespace {
 
+// This is the SHA1 hash of the SubjectPublicKeyInfo of nist.der.
+static const char nistSPKIHash[] =
+    "\x15\x60\xde\x65\x4e\x03\x9f\xd0\x08\x82"
+    "\xa9\x6a\xc4\x65\x8e\x6f\x92\x06\x84\x35";
+
 // Certificates for test data. They're obtained with:
 //
 // $ openssl s_client -connect [host]:443 -showcerts > /tmp/host.pem < /dev/null