Expose getters methods for NQE on UI thread

chrome/browser/net/nqe/ui_network_quality_estimator_service.cc

Index: chrome/browser/net/nqe/ui_network_quality_estimator_service.cc
diff --git a/chrome/browser/net/nqe/ui_network_quality_estimator_service.cc b/chrome/browser/net/nqe/ui_network_quality_estimator_service.cc
index fd5cf787d7f91b7e5546b6f0a8ffed9494bd5606..bdfd49e585dc053dc3c905809bf9aaf1e5ee181d 100644
--- a/chrome/browser/net/nqe/ui_network_quality_estimator_service.cc
+++ b/chrome/browser/net/nqe/ui_network_quality_estimator_service.cc
@@ -21,6 +21,7 @@
 #include "components/variations/variations_associated_data.h"
 #include "content/public/browser/browser_thread.h"
 #include "net/nqe/network_qualities_prefs_manager.h"
+#include "net/nqe/network_quality.h"
 
 namespace {
 
@@ -145,9 +146,9 @@ class UINetworkQualityEstimatorService::IONetworkQualityObserver
 UINetworkQualityEstimatorService::UINetworkQualityEstimatorService(
     Profile* profile)
     : type_(net::EFFECTIVE_CONNECTION_TYPE_UNKNOWN),
-      http_rtt_(base::TimeDelta::FromMilliseconds(-1)),
-      transport_rtt_(base::TimeDelta::FromMilliseconds(-1)),
-      downstream_throughput_kbps_(-1),
+      http_rtt_(net::nqe::internal::InvalidRTT()),
+      transport_rtt_(net::nqe::internal::InvalidRTT()),
+      downstream_throughput_kbps_(net::nqe::internal::kInvalidThroughput),
       weak_factory_(this) {
   DCHECK(profile);
   // If this is running in a context without an IOThread, don't try to create
@@ -239,6 +240,36 @@ void UINetworkQualityEstimatorService::RemoveEffectiveConnectionTypeObserver(
   effective_connection_type_observer_list_.RemoveObserver(observer);
 }
 
+bool UINetworkQualityEstimatorService::GetHttpRTT(
+    base::TimeDelta* http_rtt) const {
+  DCHECK_CURRENTLY_ON(content::BrowserThread::UI);
+
+  if (http_rtt_ == net::nqe::internal::InvalidRTT())
+    return false;
+  *http_rtt = http_rtt_;
+  return true;
+}
+
+bool UINetworkQualityEstimatorService::GetTransportRTT(
+    base::TimeDelta* transport_rtt) const {
+  DCHECK_CURRENTLY_ON(content::BrowserThread::UI);
+
+  if (transport_rtt_ == net::nqe::internal::InvalidRTT())
+    return false;
+  *transport_rtt = transport_rtt_;
+  return true;
+}
+
+bool UINetworkQualityEstimatorService::GetDownstreamThroughputKbps(
+    int32_t* downstream_throughput_kbps) const {
+  DCHECK_CURRENTLY_ON(content::BrowserThread::UI);
+
+  if (downstream_throughput_kbps_ == net::nqe::internal::kInvalidThroughput)
+    return false;
+  *downstream_throughput_kbps = downstream_throughput_kbps_;
+  return true;
+}
+
 void UINetworkQualityEstimatorService::AddRTTAndThroughputEstimatesObserver(
     net::NetworkQualityEstimator::RTTAndThroughputEstimatesObserver* observer) {
   DCHECK_CURRENTLY_ON(content::BrowserThread::UI);