Wire NQE Prefs to Profile

net/nqe/network_qualities_prefs_manager.cc

 // Copyright 2016 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 "net/nqe/network_qualities_prefs_manager.h"
 
 #include <utility>
 
 #include "base/bind.h"
 #include "base/sequenced_task_runner.h"
@@ skipping 40 matching lines @@
   // Notify |this| on the pref thread.
   pref_task_runner_->PostTask(
       FROM_HERE,
       base::Bind(&NetworkQualitiesPrefsManager::
                      OnChangeInCachedNetworkQualityOnPrefThread,
                  pref_weak_ptr_, network_id, cached_network_quality));
 }
 
 void NetworkQualitiesPrefsManager::ShutdownOnPrefThread() {
   DCHECK(pref_task_runner_->RunsTasksOnCurrentThread());
+  pref_weak_ptr_factory_.InvalidateWeakPtrs();
   pref_delegate_.reset();
 }
 
 void NetworkQualitiesPrefsManager::OnChangeInCachedNetworkQualityOnPrefThread(
     const nqe::internal::NetworkID& network_id,
     const nqe::internal::CachedNetworkQuality& cached_network_quality) {
   // The prefs can only be written on the pref thread.
   DCHECK(pref_task_runner_->RunsTasksOnCurrentThread());
 
   base::DictionaryValue dictionary_value;
   dictionary_value.SetString(
       network_id.ToString(),
       GetNameForEffectiveConnectionType(
           cached_network_quality.effective_connection_type()));
 
   // Notify the pref delegate so that it updates the prefs on the disk.
   pref_delegate_->SetDictionaryValue(dictionary_value);
 }
 
 }  // namespace net