Race TCP connection to proxies with QUIC connections

net/websockets/websocket_end_to_end_test.cc

Index: net/websockets/websocket_end_to_end_test.cc
diff --git a/net/websockets/websocket_end_to_end_test.cc b/net/websockets/websocket_end_to_end_test.cc
index 1439690d740cfd44d6a9a3f22618539a62d170e8..0b7248ca18a05358dfec86cdc0d9d366dff65ef0 100644
--- a/net/websockets/websocket_end_to_end_test.cc
+++ b/net/websockets/websocket_end_to_end_test.cc
@@ -232,6 +232,12 @@ class TestProxyDelegateWithProxyInfo : public ProxyDelegate {
   bool IsTrustedSpdyProxy(const net::ProxyServer& proxy_server) override {
     return true;
   }
+  void GetAlternativeProxy(
+      const GURL& url,
+      const ProxyServer& resolved_proxy_server,
+      ProxyServer* alternative_proxy_server) const override {}
+  void OnAlternativeProxyBroken(
+      const ProxyServer& alternative_proxy_server) override {}
 
  private:
   ResolvedProxyInfo resolved_proxy_info_;