Removing NSS files and USE_OPENSSL flag

net/socket/client_socket_factory.cc

Index: net/socket/client_socket_factory.cc
diff --git a/net/socket/client_socket_factory.cc b/net/socket/client_socket_factory.cc
index 311f926b59fcefdc3f2c9be276d025c0251dfcd3..1a63cd702f2623fbe64c4b464e5a61a02c381bc6 100644
--- a/net/socket/client_socket_factory.cc
+++ b/net/socket/client_socket_factory.cc
@@ -13,11 +13,7 @@
 #include "net/socket/tcp_client_socket.h"
 #include "net/udp/udp_client_socket.h"
 
-#if defined(USE_OPENSSL)
 #include "net/socket/ssl_client_socket_openssl.h"
-#else
-#include "net/socket/ssl_client_socket_nss.h"
-#endif
 
 namespace net {
 
@@ -71,13 +67,8 @@ class DefaultClientSocketFactory : public ClientSocketFactory,
       const HostPortPair& host_and_port,
       const SSLConfig& ssl_config,
       const SSLClientSocketContext& context) override {
-#if defined(USE_OPENSSL)
     return scoped_ptr<SSLClientSocket>(new SSLClientSocketOpenSSL(
         std::move(transport_socket), host_and_port, ssl_config, context));
-#else
-    return scoped_ptr<SSLClientSocket>(new SSLClientSocketNSS(
-        std::move(transport_socket), host_and_port, ssl_config, context));
-#endif
   }
 
   void ClearSSLSessionCache() override { SSLClientSocket::ClearSessionCache(); }