Add reprioritization to socket pools.

net/socket/socks_client_socket_pool.h

Index: net/socket/socks_client_socket_pool.h
diff --git a/net/socket/socks_client_socket_pool.h b/net/socket/socks_client_socket_pool.h
index 6d47ab4726d59bda2b125420aff8b20d0d6b7009..cf6456b1e4400cca9344f2f8ff7af70edf816081 100644
--- a/net/socket/socks_client_socket_pool.h
+++ b/net/socket/socks_client_socket_pool.h
@@ -132,6 +132,10 @@ class NET_EXPORT_PRIVATE SOCKSClientSocketPool
                       int num_sockets,
                       const NetLogWithSource& net_log) override;
 
+  void SetPriority(const std::string& group_name,
+                   ClientSocketHandle* handle,
+                   RequestPriority priority) override;
+
   void CancelRequest(const std::string& group_name,
                      ClientSocketHandle* handle) override;