Implement SSLClientSocketPool.

net/http/http_network_transaction.h

Index: net/http/http_network_transaction.h
diff --git a/net/http/http_network_transaction.h b/net/http/http_network_transaction.h
index 373aba87a1ff34092407f54ef0a121b0d24f06b6..a5207daba64d0c6dc9e86026b97f92734135cb53 100644
--- a/net/http/http_network_transaction.h
+++ b/net/http/http_network_transaction.h
@@ -127,7 +127,6 @@ class HttpNetworkTransaction : public HttpTransaction {
   int DoResolveProxyComplete(int result);
   int DoInitConnection();
   int DoInitConnectionComplete(int result);
-  int DoTunnelRestartWithAuth();
   int DoSSLConnect();
   int DoSSLConnectComplete(int result);
   int DoGenerateProxyAuthToken();
@@ -305,9 +304,6 @@ class HttpNetworkTransaction : public HttpTransaction {
   // The time the Start method was called.
   base::Time start_time_;
 
-  // The time the DoSSLConnect() method was called (if it got called).
-  base::TimeTicks ssl_connect_start_time_;
-
   // The next state in the state machine.
   State next_state_;