Expose ECT to render frames, Blink and NetInfo

content/renderer/render_thread_impl.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 "content/renderer/render_thread_impl.h"
 
 #include <algorithm>
 #include <limits>
 #include <map>
 #include <utility>
@@ skipping 2120 matching lines @@
     double max_bandwidth_mbps) {
   bool online = type != net::NetworkChangeNotifier::CONNECTION_NONE;
   WebNetworkStateNotifier::SetOnLine(online);
   for (auto& observer : observers_)
     observer.NetworkStateChanged(online);
   WebNetworkStateNotifier::SetWebConnection(
       NetConnectionTypeToWebConnectionType(type), max_bandwidth_mbps);
 }
 
 void RenderThreadImpl::OnNetworkQualityChanged(
+    net::EffectiveConnectionType type,

[nasko, 2017/05/23 04:54:37]

This doesn't seem to be used at all.

[tbansal1, 2017/05/23 18:35:28]

I have added the plumbing to Blink.

     base::TimeDelta http_rtt,
     base::TimeDelta transport_rtt,
     double downlink_throughput_kbps) {
   UMA_HISTOGRAM_BOOLEAN("NQE.RenderThreadNotified", true);
   WebNetworkStateNotifier::SetNetworkQuality(http_rtt, transport_rtt,
                                              downlink_throughput_kbps);
 }
 
 void RenderThreadImpl::SetWebKitSharedTimersSuspended(bool suspend) {
 #if defined(OS_ANDROID)
@@ skipping 307 matching lines @@
   }
 }
 
 void RenderThreadImpl::OnRendererInterfaceRequest(
     mojom::RendererAssociatedRequest request) {
   DCHECK(!renderer_binding_.is_bound());
   renderer_binding_.Bind(std::move(request));
 }
 
 }  // namespace content