Add DataReductionProxyExperimentsStats and UMA for measuring potentially non-compressed bytes.

android_webview/browser/aw_browser_context.cc

 // Copyright (c) 2012 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 "android_webview/browser/aw_browser_context.h"
 
 #include "android_webview/browser/aw_form_database_service.h"
 #include "android_webview/browser/aw_permission_manager.h"
 #include "android_webview/browser/aw_pref_store.h"
 #include "android_webview/browser/aw_quota_manager_bridge.h"
@@ skipping 153 matching lines @@
           BrowserThread::GetMessageLoopProxyForThread(BrowserThread::UI),
           false /* enable */,
           false /* enable_quic */,
           GetUserAgent()));
   data_reduction_proxy_settings_.reset(
       new data_reduction_proxy::DataReductionProxySettings());
   data_reduction_proxy_service_.reset(
       new data_reduction_proxy::DataReductionProxyService(
           scoped_ptr<
               data_reduction_proxy::DataReductionProxyCompressionStats>(),
-          data_reduction_proxy_settings_.get(), GetAwURLRequestContext(),
+          data_reduction_proxy_settings_.get(), nullptr,
+          GetAwURLRequestContext(),
           BrowserThread::GetMessageLoopProxyForThread(BrowserThread::IO)));
   data_reduction_proxy_io_data_->SetDataReductionProxyService(
       data_reduction_proxy_service_->GetWeakPtr());
 
   visitedlink_master_.reset(
       new visitedlink::VisitedLinkMaster(this, this, false));
   visitedlink_master_->Init();
 
   form_database_service_.reset(
       new AwFormDatabaseService(context_storage_path_));
@@ skipping 197 matching lines @@
     return;
   // We don't care about commit_delay for now. It is just a dummy value.
   base::TimeDelta commit_delay = base::TimeDelta::FromMinutes(60);
   data_reduction_proxy_service->EnableCompressionStatisticsLogging(
       user_pref_service_.get(),
       BrowserThread::GetMessageLoopProxyForThread(BrowserThread::UI),
       commit_delay);
 }
 
 }  // namespace android_webview