Revert r47395. Looks like it still crashes =/

net/http/http_network_layer.cc

Index: net/http/http_network_layer.cc
diff --git a/net/http/http_network_layer.cc b/net/http/http_network_layer.cc
index d5ae8e3a2be479d8fef6a7156d980180aa979061..09ee5cd4a10e4f08c06bf25c1e0c0fbd7deeded4 100644
--- a/net/http/http_network_layer.cc
+++ b/net/http/http_network_layer.cc
@@ -103,9 +103,10 @@ void HttpNetworkLayer::Suspend(bool suspend) {
 HttpNetworkSession* HttpNetworkLayer::GetSession() {
   if (!session_) {
     DCHECK(proxy_service_);
+    SpdySessionPool* spdy_pool = new SpdySessionPool;
     session_ = new HttpNetworkSession(
         network_change_notifier_, host_resolver_, proxy_service_,
-        socket_factory_, ssl_config_service_,
+        socket_factory_, ssl_config_service_, spdy_pool,
         http_auth_handler_factory_);
     // These were just temps for lazy-initializing HttpNetworkSession.
     network_change_notifier_ = NULL;