Allow two SSL Server Socket parameters to be tuned by the caller

net/socket/ssl_server_socket_nss.cc

Index: net/socket/ssl_server_socket_nss.cc
diff --git a/net/socket/ssl_server_socket_nss.cc b/net/socket/ssl_server_socket_nss.cc
index 879a1fa179266e9c38a806c52fc8b564f1d01fad..7821d5ec763854da0233f9f8abb6fa5a7e23b287 100644
--- a/net/socket/ssl_server_socket_nss.cc
+++ b/net/socket/ssl_server_socket_nss.cc
@@ -53,13 +53,18 @@ namespace net {
 namespace {
 
 bool g_nss_server_sockets_init = false;
+int g_max_session_id_cache_entries = 1024;
+int g_ssl_session_id_cache_timeout = 5;
 
 class NSSSSLServerInitSingleton {
  public:
   NSSSSLServerInitSingleton() {
     EnsureNSSSSLInit();
 
-    SSL_ConfigServerSessionIDCache(1024, 5, 5, NULL);
+    SSL_ConfigServerSessionIDCache(g_max_session_id_cache_entries,
+                                   g_ssl_session_id_cache_timeout,
+                                   g_ssl_session_id_cache_timeout,
+                                   NULL);
     g_nss_server_sockets_init = true;
   }
 
@@ -74,6 +79,16 @@ static base::LazyInstance<NSSSSLServerInitSingleton>
 
 }  // namespace
 
+void SetSSLServerSessionCacheParameters(
+    int max_session_id_cache_entries,
+    int ssl_session_id_cache_timeout) {
+  DCHECK(!g_nss_server_sockets_init) << "SetSSLServerSessionCacheParameters"
+                                     << " cannot be called after"
+                                     << " EnableSSLServerSockets.";
+  g_max_session_id_cache_entries = max_session_id_cache_entries;
+  g_ssl_session_id_cache_timeout = ssl_session_id_cache_timeout;
+}
+
 void EnableSSLServerSockets() {
   g_nss_ssl_server_init_singleton.Get();
 }
@@ -84,7 +99,7 @@ scoped_ptr<SSLServerSocket> CreateSSLServerSocket(
     crypto::RSAPrivateKey* key,
     const SSLConfig& ssl_config) {
   DCHECK(g_nss_server_sockets_init) << "EnableSSLServerSockets() has not been"
-                                    << "called yet!";
+                                    << " called yet!";
 
   return scoped_ptr<SSLServerSocket>(
       new SSLServerSocketNSS(socket.Pass(), cert, key, ssl_config));