Add host resolver rules experimental flag for Cronet

components/cronet/android/test/javatests/src/org/chromium/net/BidirectionalStreamQuicTest.java

 // Copyright 2016 The Chromium Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 package org.chromium.net;
 
 import android.test.suitebuilder.annotation.SmallTest;
 
 import org.chromium.base.test.util.Feature;
 import org.chromium.net.CronetTestBase.OnlyRunNativeCronet;
@@ skipping 16 matching lines @@
         System.loadLibrary("cronet_tests");
         CronetEngine.Builder builder = new CronetEngine.Builder(getContext());
 
         QuicTestServer.startQuicTestServer(getContext());
 
         builder.enableQUIC(true);
         JSONObject quicParams = new JSONObject().put("host_whitelist", "test.example.com");
         if (enabled == QuicBidirectionalStreams.DISABLED) {
             quicParams.put("quic_disable_bidirectional_streams", true);
         }
-        JSONObject experimentalOptions = new JSONObject().put("QUIC", quicParams);
+        JSONObject hostResolverParams = CronetTestUtil.generateHostResolverRules();
+        JSONObject experimentalOptions = new JSONObject()
+                                                 .put("QUIC", quicParams)
+                                                 .put("HostResolverRules", hostResolverParams);
         builder.setExperimentalOptions(experimentalOptions.toString());
 
         builder.addQuicHint(QuicTestServer.getServerHost(), QuicTestServer.getServerPort(),
                 QuicTestServer.getServerPort());
 
         builder.setMockCertVerifierForTesting(QuicTestServer.createMockCertVerifier());
 
         mTestFramework = startCronetTestFrameworkWithUrlAndCronetEngineBuilder(null, builder);
-        registerHostResolver(mTestFramework);
     }
 
     @Override
     protected void tearDown() throws Exception {
         QuicTestServer.shutdownQuicTestServer();
         super.tearDown();
     }
 
     @SmallTest
     @Feature({"Cronet"})
@@ skipping 288 matching lines @@
         builder.enableQUIC(true);
         builder.setMockCertVerifierForTesting(QuicTestServer.createMockCertVerifier());
         builder.setCertVerifierData(serialized_data);
 
         CronetTestFramework testFramework =
                 startCronetTestFrameworkWithUrlAndCronetEngineBuilder(null, builder);
         String deserialized_data = testFramework.mCronetEngine.getCertVerifierData(100);
         assertEquals(deserialized_data, serialized_data);
     }
 }