Initialize AltSvc flags to false in SpdySessionDependencies.

net/spdy/spdy_test_util_common.cc

Index: net/spdy/spdy_test_util_common.cc
diff --git a/net/spdy/spdy_test_util_common.cc b/net/spdy/spdy_test_util_common.cc
index 7b970ea39635bc8b2d0801663a5278674d97a2c3..a166565208e701d3717988b6d7e80164209eb77d 100644
--- a/net/spdy/spdy_test_util_common.cc
+++ b/net/spdy/spdy_test_util_common.cc
@@ -387,8 +387,8 @@ SpdySessionDependencies::SpdySessionDependencies(
       time_func(&base::TimeTicks::Now),
       enable_spdy31(true),
       enable_http2(true),
-      parse_alternative_services(true),
-      enable_alternative_service_with_different_host(true),
+      parse_alternative_services(false),
+      enable_alternative_service_with_different_host(false),
       net_log(NULL) {
   DCHECK(next_proto_is_spdy(protocol)) << "Invalid protocol: " << protocol;
 }