Make CertVerifier a pure virtual interface.

net/socket/ssl_client_socket_pool_unittest.cc

Index: net/socket/ssl_client_socket_pool_unittest.cc
diff --git a/net/socket/ssl_client_socket_pool_unittest.cc b/net/socket/ssl_client_socket_pool_unittest.cc
index df893f90d35d7eb89bd059bea7378fe3af45f1d8..3357205b4a6e2d7591d5313640e37217bd6f30cc 100644
--- a/net/socket/ssl_client_socket_pool_unittest.cc
+++ b/net/socket/ssl_client_socket_pool_unittest.cc
@@ -135,7 +135,7 @@ class SSLClientSocketPoolTest : public testing::Test {
   HttpNetworkSession* CreateNetworkSession() {
     HttpNetworkSession::Params params;
     params.host_resolver = &host_resolver_;
-    params.cert_verifier = &cert_verifier_;
+    params.cert_verifier = cert_verifier_.get();
     params.proxy_service = proxy_service_.get();
     params.client_socket_factory = &socket_factory_;
     params.ssl_config_service = ssl_config_service_;
@@ -146,7 +146,7 @@ class SSLClientSocketPoolTest : public testing::Test {
 
   MockClientSocketFactory socket_factory_;
   MockCachingHostResolver host_resolver_;
-  CertVerifier cert_verifier_;
+  scoped_ptr<CertVerifier> cert_verifier_;
   const scoped_ptr<ProxyService> proxy_service_;
   const scoped_refptr<SSLConfigService> ssl_config_service_;
   const scoped_ptr<HttpAuthHandlerFactory> http_auth_handler_factory_;