Enable AltSvc pooling by default.

components/data_reduction_proxy/core/browser/data_reduction_proxy_io_data_unittest.cc

 // Copyright 2015 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.
 
 #include "components/data_reduction_proxy/core/browser/data_reduction_proxy_io_data.h"
 
 #include <stddef.h>
 
 #include "base/memory/ptr_util.h"
 #include "base/memory/ref_counted.h"
@@ skipping 92 matching lines @@
           std::string() /* user_agent */));
 
   // Check that the SimpleURLRequestContextGetter uses vanilla HTTP.
   net::URLRequestContext* request_context =
       io_data->basic_url_request_context_getter_.get()->GetURLRequestContext();
   const net::HttpNetworkSession::Params* http_params =
       request_context->GetNetworkSessionParams();
   EXPECT_FALSE(http_params->enable_spdy31);
   EXPECT_FALSE(http_params->enable_http2);
   EXPECT_TRUE(http_params->parse_alternative_services);
-  EXPECT_FALSE(http_params->enable_alternative_service_with_different_host);
+  EXPECT_TRUE(http_params->enable_alternative_service_with_different_host);
   EXPECT_FALSE(http_params->enable_quic);
 
   // Check that io_data creates an interceptor. Such an interceptor is
   // thoroughly tested by DataReductionProxyInterceptoTest.
   std::unique_ptr<net::URLRequestInterceptor> interceptor =
       io_data->CreateInterceptor();
   EXPECT_NE(nullptr, interceptor.get());
 
   // When creating a network delegate, expect that it properly wraps a
   // network delegate. Such a network delegate is thoroughly tested by
@@ skipping 57 matching lines @@
 
   // Turn Data Saver off.
   drp_test_context->settings()->SetDataReductionProxyEnabled(false);
   base::RunLoop().RunUntilIdle();
 
   // Verify that bad proxy list is empty.
   EXPECT_EQ(0UL, bad_proxy_list.size());
 }
 
 }  // namespace data_reduction_proxy