Convert ThroughputObservationCallback to RepeatingCallback.

Bug: 1007815
Change-Id: I72241731610b566ca062ff95f8fd94289999b3a1
Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/2083327Reviewed-by: Matt Menke <mmenke@chromium.org>
Commit-Queue: Anna Malova <amalova@chromium.org>
Cr-Commit-Position: refs/heads/master@{#746379}

net/nqe/network_quality_estimator.cc

@@ -183,8 +183,9 @@ NetworkQualityEstimator::NetworkQualityEstimator(
   NetworkChangeNotifier::AddConnectionTypeObserver(this);
   throughput_analyzer_.reset(new nqe::internal::ThroughputAnalyzer(
       this, params_.get(), base::ThreadTaskRunnerHandle::Get(),
-      base::Bind(&NetworkQualityEstimator::OnNewThroughputObservationAvailable,
-                 weak_ptr_factory_.GetWeakPtr()),
+      base::BindRepeating(
+          &NetworkQualityEstimator::OnNewThroughputObservationAvailable,
+          weak_ptr_factory_.GetWeakPtr()),
       tick_clock_, net_log_));
 
   watcher_factory_.reset(new nqe::internal::SocketWatcherFactory(

net/nqe/throughput_analyzer.h

@@ -20,7 +20,7 @@
 #include "net/log/net_log_with_source.h"
 
 namespace {
-typedef base::Callback<void(int32_t)> ThroughputObservationCallback;
+typedef base::RepeatingCallback<void(int32_t)> ThroughputObservationCallback;
 }
 
 namespace base {

net/nqe/throughput_analyzer_unittest.cc

@@ -59,7 +59,7 @@ class TestThroughputAnalyzer : public internal::ThroughputAnalyzer {
             network_quality_estimator,
             params,
             base::ThreadTaskRunnerHandle::Get(),
-            base::Bind(
+            base::BindRepeating(
                 &TestThroughputAnalyzer::OnNewThroughputObservationAvailable,
                 base::Unretained(this)),
             tick_clock,