Add host resolver rules experimental flag for Cronet

components/cronet/url_request_context_config_unittest.cc

Index: components/cronet/url_request_context_config_unittest.cc
diff --git a/components/cronet/url_request_context_config_unittest.cc b/components/cronet/url_request_context_config_unittest.cc
index c129a8fe236bd452eb4cd0de853c31a6bcb81af4..79afb7f6135fefbd9567f17ff1749e8923be80b0 100644
--- a/components/cronet/url_request_context_config_unittest.cc
+++ b/components/cronet/url_request_context_config_unittest.cc
@@ -16,7 +16,7 @@
 
 namespace cronet {
 
-TEST(URLRequestContextConfigTest, SetQuicExperimentalOptions) {
+TEST(URLRequestContextConfigTest, TestExperimentalOptionPassing) {
   URLRequestContextConfig config(
       // Enable QUIC.
       true,
@@ -47,7 +47,9 @@ TEST(URLRequestContextConfigTest, SetQuicExperimentalOptions) {
       "\"idle_connection_timeout_seconds\":300,"
       "\"close_sessions_on_ip_change\":true,"
       "\"connection_options\":\"TIME,TBBR,REJ\"},"
-      "\"AsyncDNS\":{\"enable\":true}}",
+      "\"AsyncDNS\":{\"enable\":true},"
+      "\"HostResolverRules\":{\"host_resolver_rules\":"
+      "\"MAP * 127.0.0.1\"}}",
       // Data reduction proxy key.
       "",
       // Data reduction proxy.
@@ -60,8 +62,8 @@ TEST(URLRequestContextConfigTest, SetQuicExperimentalOptions) {
       std::unique_ptr<net::CertVerifier>());
 
   net::URLRequestContextBuilder builder;
-  net::NetLog net_log;
-  config.ConfigureURLRequestContextBuilder(&builder, &net_log, nullptr);
+  config.ConfigureURLRequestContextBuilder(&builder, new net::NetLog(),

[pauljensen, 2016/06/10 14:19:37]

why the change to create NetLog on the heap?  looks like a leak

[mgersh, 2016/06/29 17:43:31]

Done.

+                                           nullptr);
   // Set a ProxyConfigService to avoid DCHECK failure when building.
   builder.set_proxy_config_service(base::WrapUnique(
       new net::ProxyConfigServiceFixed(net::ProxyConfig::CreateDirect())));
@@ -137,8 +139,8 @@ TEST(URLRequestContextConfigTest, SetQuicConnectionMigrationOptions) {
       std::unique_ptr<net::CertVerifier>());
 
   net::URLRequestContextBuilder builder;
-  net::NetLog net_log;
-  config.ConfigureURLRequestContextBuilder(&builder, &net_log, nullptr);
+  config.ConfigureURLRequestContextBuilder(&builder, new net::NetLog(),
+                                           nullptr);
   // Set a ProxyConfigService to avoid DCHECK failure when building.
   builder.set_proxy_config_service(base::WrapUnique(
       new net::ProxyConfigServiceFixed(net::ProxyConfig::CreateDirect())));