Enable QUIC for proxies only when QUIC is enabled

components/cronet/android/cronet_data_reduction_proxy.cc

Index: components/cronet/android/cronet_data_reduction_proxy.cc
diff --git a/components/cronet/android/cronet_data_reduction_proxy.cc b/components/cronet/android/cronet_data_reduction_proxy.cc
index 3598f4ed0645426e5eba51422c199a28b0c41c59..1f9e07615b2940543949a37a7f6e3e58706c5c21 100644
--- a/components/cronet/android/cronet_data_reduction_proxy.cc
+++ b/components/cronet/android/cronet_data_reduction_proxy.cc
@@ -88,12 +88,11 @@ CronetDataReductionProxy::CronetDataReductionProxy(
   // network thread.
   settings_.reset(
       new data_reduction_proxy::DataReductionProxySettings());
-  io_data_.reset(
-      new data_reduction_proxy::DataReductionProxyIOData(
-          data_reduction_proxy::Client::CRONET_ANDROID,
-          data_reduction_proxy::DataReductionProxyParams::kAllowed |
-              data_reduction_proxy::DataReductionProxyParams::kFallbackAllowed,
-          net_log, task_runner, task_runner, false, false, user_agent));
+  io_data_.reset(new data_reduction_proxy::DataReductionProxyIOData(
+      data_reduction_proxy::Client::CRONET_ANDROID,
+      data_reduction_proxy::DataReductionProxyParams::kAllowed |
+          data_reduction_proxy::DataReductionProxyParams::kFallbackAllowed,
+      net_log, task_runner, task_runner, false, user_agent));
   io_data_->request_options()->SetKeyOnIO(key);
 }