Expose getters methods for NQE on UI thread

chrome/browser/net/nqe/ui_network_quality_estimator_service.h

Index: chrome/browser/net/nqe/ui_network_quality_estimator_service.h
diff --git a/chrome/browser/net/nqe/ui_network_quality_estimator_service.h b/chrome/browser/net/nqe/ui_network_quality_estimator_service.h
index af77188b0b2f105890a74f46b6bd06f955d14efa..7190140334c134831f20afd761f07abaf0b02155 100644
--- a/chrome/browser/net/nqe/ui_network_quality_estimator_service.h
+++ b/chrome/browser/net/nqe/ui_network_quality_estimator_service.h
@@ -46,6 +46,11 @@ class UINetworkQualityEstimatorService
   void RemoveEffectiveConnectionTypeObserver(
       net::NetworkQualityEstimator::EffectiveConnectionTypeObserver* observer)
       override;
+  bool GetHttpRTT(base::TimeDelta* http_rtt) const override WARN_UNUSED_RESULT;

[RyanSturm, 2017/03/15 18:25:30]

Return base::optional<TYPE> instead for these?

[tbansal1, 2017/03/15 22:34:24]

Done.

+  bool GetTransportRTT(base::TimeDelta* transport_rtt) const override
+      WARN_UNUSED_RESULT;
+  bool GetDownstreamThroughputKbps(
+      int32_t* downstream_throughput_kbps) const override WARN_UNUSED_RESULT;

[RyanSturm, 2017/03/15 18:25:30]

include <stdint.h>

[tbansal1, 2017/03/15 22:34:23]

Done.

 
   // Must be called on the UI thread. |observer| will be notified on the UI
   // thread. |observer| would be notified of the changes in the HTTP RTT,