Make CertVerifier a pure virtual interface.

net/spdy/spdy_test_util.cc

Index: net/spdy/spdy_test_util.cc
diff --git a/net/spdy/spdy_test_util.cc b/net/spdy/spdy_test_util.cc
index e0f29395756c3680aa4ad13031a0f38da54cba97..7e7206d41ea9cbc2ff12e33d28f3e54ee992bf2b 100644
--- a/net/spdy/spdy_test_util.cc
+++ b/net/spdy/spdy_test_util.cc
@@ -10,6 +10,7 @@
 #include "base/compiler_specific.h"
 #include "base/string_number_conversions.h"
 #include "base/string_util.h"
+#include "net/base/multi_threaded_cert_verifier.h"
 #include "net/http/http_network_session.h"
 #include "net/http/http_network_transaction.h"
 #include "net/http/http_server_properties_impl.h"
@@ -902,7 +903,7 @@ int CombineFrames(const spdy::SpdyFrame** frames, int num_frames,
 
 SpdySessionDependencies::SpdySessionDependencies()
     : host_resolver(new MockCachingHostResolver),
-      cert_verifier(new CertVerifier),
+      cert_verifier(new MultiThreadedCertVerifier),
       proxy_service(ProxyService::CreateDirect()),
       ssl_config_service(new SSLConfigServiceDefaults),
       socket_factory(new MockClientSocketFactory),
@@ -920,7 +921,7 @@ SpdySessionDependencies::SpdySessionDependencies()
 
 SpdySessionDependencies::SpdySessionDependencies(ProxyService* proxy_service)
     : host_resolver(new MockHostResolver),
-      cert_verifier(new CertVerifier),
+      cert_verifier(new MultiThreadedCertVerifier),
       proxy_service(proxy_service),
       ssl_config_service(new SSLConfigServiceDefaults),
       socket_factory(new MockClientSocketFactory),
@@ -964,7 +965,7 @@ HttpNetworkSession* SpdySessionDependencies::SpdyCreateSessionDeterministic(
 SpdyURLRequestContext::SpdyURLRequestContext()
     : ALLOW_THIS_IN_INITIALIZER_LIST(storage_(this)) {
   storage_.set_host_resolver(new MockHostResolver());
-  storage_.set_cert_verifier(new CertVerifier);
+  storage_.set_cert_verifier(new MultiThreadedCertVerifier);
   storage_.set_proxy_service(ProxyService::CreateDirect());
   storage_.set_ssl_config_service(new SSLConfigServiceDefaults);
   storage_.set_http_auth_handler_factory(HttpAuthHandlerFactory::CreateDefault(