Implement X509Certificate::Persist. This fixes gmail on linux.

net/base/x509_certificate_unittest.cc

 // Copyright (c) 2006-2008 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/port.h"
+#include "base/pickle.h"
 #include "net/base/cert_status_flags.h"
 #include "net/base/x509_certificate.h"
 #include "testing/gtest/include/gtest/gtest.h"
 
 // Unit tests aren't allowed to access external resources. Unfortunately, to
 // properly verify the EV-ness of a cert, we need to check for its revocation
 // through online servers. If you're manually running unit tests, feel free to
 // turn this on to test EV certs. But leave it turned off for the automated
 // testing.
 #define ALLOW_EXTERNAL_ACCESS 0
@@ skipping 517 matching lines @@
   EXPECT_EQ(cert3, cert4);
 
   google_cert_handle = X509Certificate::CreateOSCertHandleFromBytes(
       reinterpret_cast<const char*>(google_der), sizeof(google_der));
   scoped_refptr<X509Certificate> cert5 = X509Certificate::CreateFromHandle(
       google_cert_handle, X509Certificate::SOURCE_FROM_NETWORK);
 
   EXPECT_EQ(cert3, cert5);
 }
 
+TEST(X509CertificateTest, Pickle) {
+  scoped_refptr<X509Certificate> cert1 = X509Certificate::CreateFromBytes(
+      reinterpret_cast<const char*>(google_der), sizeof(google_der));
+
+  Pickle pickle;
+  cert1->Persist(&pickle);
+
+  void* iter = NULL;
+  scoped_refptr<X509Certificate> cert2 =
+      X509Certificate::CreateFromPickle(pickle, &iter);
+
+  EXPECT_EQ(cert1, cert2);
+}
+
 }  // namespace net