Close idle sockets next time we are about to send data.

net/http/http_proxy_client_socket_pool.cc

Index: net/http/http_proxy_client_socket_pool.cc
diff --git a/net/http/http_proxy_client_socket_pool.cc b/net/http/http_proxy_client_socket_pool.cc
index d4c080ff3e95d1ee8e91d0dbf9662e2a7d4ac091..259a6a88cd3d603a31a519f03769228e4cbac308 100644
--- a/net/http/http_proxy_client_socket_pool.cc
+++ b/net/http/http_proxy_client_socket_pool.cc
@@ -382,7 +382,8 @@ HttpProxyClientSocketPool::HttpProxyClientSocketPool(
     HostResolver* host_resolver,
     TransportClientSocketPool* transport_pool,
     SSLClientSocketPool* ssl_pool,
-    NetLog* net_log)
+    NetLog* net_log,
+    const ClientSocketPoolOptions& options)
     : transport_pool_(transport_pool),
       ssl_pool_(ssl_pool),
       base_(max_sockets, max_sockets_per_group, histograms,
@@ -391,7 +392,8 @@ HttpProxyClientSocketPool::HttpProxyClientSocketPool(
             new HttpProxyConnectJobFactory(transport_pool,
                                            ssl_pool,
                                            host_resolver,
-                                           net_log)) {}
+                                           net_log),
+            options) {}
 
 HttpProxyClientSocketPool::~HttpProxyClientSocketPool() {}