Add reprioritization to socket pools.

net/socket/ssl_client_socket_pool.h

Index: net/socket/ssl_client_socket_pool.h
diff --git a/net/socket/ssl_client_socket_pool.h b/net/socket/ssl_client_socket_pool.h
index c02fe98150fe34b3b8238ae3ce40e53411b4116c..d39f9202aba022edaa583148bdc4f7dc26f07355 100644
--- a/net/socket/ssl_client_socket_pool.h
+++ b/net/socket/ssl_client_socket_pool.h
@@ -215,6 +215,10 @@ class NET_EXPORT_PRIVATE SSLClientSocketPool
                       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;