Add support for speaking SSL to an HTTP Proxy, to HttpProxyClientSocketPool (and friends)

net/http/http_stream_request.h

Index: net/http/http_stream_request.h
===================================================================
--- net/http/http_stream_request.h	(revision 57332)
+++ net/http/http_stream_request.h	(working copy)
@@ -22,8 +22,12 @@
 class ClientSocketHandle;
 class HttpAuthController;
 class HttpNetworkSession;
+class HttpProxySocketParams;
 class HttpStreamFactory;
+class SOCKSSocketParams;
+class SSLSocketParams;
 class StreamRequestDelegate;
+class TCPSocketParams;
 
 // An HttpStreamRequest exists for each stream which is in progress of being
 // created for the StreamFactory.
@@ -106,6 +110,15 @@
   int DoRestartTunnelAuth();
   int DoRestartTunnelAuthComplete(int result);
 
+  // Returns a newly create SSLSocketParams, and sets several
+  // fields of ssl_config_.
+  scoped_refptr<SSLSocketParams> GenerateSslParams(
+      scoped_refptr<TCPSocketParams> tcp_params,
+      scoped_refptr<HttpProxySocketParams> http_proxy_params,
+      scoped_refptr<SOCKSSocketParams> socks_params,
+      ProxyServer::Scheme proxy_scheme,
+      bool want_spdy_over_npn);
+
   // AlternateProtocol API
   void MarkBrokenAlternateProtocolAndFallback();