Clean up NPN/ALPN-related SSLClientSocket bits.

chrome/browser/extensions/api/socket/tls_socket_unittest.cc

Index: chrome/browser/extensions/api/socket/tls_socket_unittest.cc
diff --git a/chrome/browser/extensions/api/socket/tls_socket_unittest.cc b/chrome/browser/extensions/api/socket/tls_socket_unittest.cc
index a0c9cdeef5c801a7f78b261c1222b5b08e3eeab2..ff8765919b51efdfaedc313a0d4385c0d95039ca 100644
--- a/chrome/browser/extensions/api/socket/tls_socket_unittest.cc
+++ b/chrome/browser/extensions/api/socket/tls_socket_unittest.cc
@@ -61,8 +61,8 @@ class MockSSLClientSocket : public net::SSLClientSocket {
                    unsigned int));
   MOCK_METHOD1(GetTLSUniqueChannelBinding, int(std::string*));
   MOCK_METHOD1(GetSSLCertRequestInfo, void(net::SSLCertRequestInfo*));
-  MOCK_METHOD1(GetNextProto,
-               net::SSLClientSocket::NextProtoStatus(std::string*));
+  MOCK_CONST_METHOD1(GetNextProto,
+                     net::SSLClientSocket::NextProtoStatus(std::string*));
   MOCK_CONST_METHOD0(GetUnverifiedServerCertificateChain,
                      scoped_refptr<net::X509Certificate>());
   MOCK_CONST_METHOD0(GetChannelIDService, net::ChannelIDService*());