Adding version info to the client config request

components/cronet/android/cronet_data_reduction_proxy.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/cronet/android/cronet_data_reduction_proxy.h"
 
 #include <utility>
 
 #include "base/command_line.h"
 #include "base/logging.h"
@@ skipping 74 matching lines @@
                           base::CommandLine::ForCurrentProcess());
   prefs_ = CreatePrefService();
   // In Cronet, the Data Reduction Proxy's UI classes are Created on Cronet's
   // 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, user_agent));
+      net_log, task_runner, task_runner, false, user_agent, std::string()));

[xunjieli, 2016/06/30 13:55:37]

You can get a Chromium version string CRONET_VERSION from
components/cronet/version.h. Will that suit this purpose?

[RyanSturm, 2016/06/30 15:09:11]

This string is for channel (dev, beta, stable). I don't think cronet has
channels, so an empty string is fine here. The version should match the version
of chrome, which we get via PRODUCT_VERSION which is defined as @VERSION_FULL@.

   io_data_->request_options()->SetKeyOnIO(key);
 }
 
 CronetDataReductionProxy::~CronetDataReductionProxy() {
   io_data_->ShutdownOnUIThread();
 }
 
 std::unique_ptr<net::NetworkDelegate>
 CronetDataReductionProxy::CreateNetworkDelegate(
     std::unique_ptr<net::NetworkDelegate> wrapped_network_delegate) {
@@ skipping 25 matching lines @@
   io_data_->SetDataReductionProxyService(
       data_reduction_proxy_service->GetWeakPtr());
   settings_->InitDataReductionProxySettings(
       kDataReductionProxyEnabled, prefs_.get(), io_data_.get(),
       std::move(data_reduction_proxy_service));
   settings_->SetDataReductionProxyEnabled(enable);
   settings_->MaybeActivateDataReductionProxy(true);
 }
 
 }  // namespace cronet