Remove usage of base::ObserverList<T>::Iter::GetNext() in //device.

device/generic_sensor/platform_sensor.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 "device/generic_sensor/platform_sensor.h"
 
 #include <utility>
 
 #include "base/threading/thread_task_runner_handle.h"
 #include "device/generic_sensor/platform_sensor_provider.h"
@@ skipping 80 matching lines @@
   buffer->reading = reading;
   seqlock.WriteEnd();
 
   if (notify_clients)
     task_runner_->PostTask(
         FROM_HERE, base::Bind(&PlatformSensor::NotifySensorReadingChanged,
                               weak_factory_.GetWeakPtr()));
 }
 
 void PlatformSensor::NotifySensorReadingChanged() {
-  using ClientsList = decltype(clients_);
-  ClientsList::Iterator it(&clients_);
-  Client* client;
-  while ((client = it.GetNext()) != nullptr) {
-    if (!client->IsNotificationSuspended())
-      client->OnSensorReadingChanged();
+  for (auto& client : clients_) {
+    if (!client.IsNotificationSuspended())
+      client.OnSensorReadingChanged();
   }
 }
 
 void PlatformSensor::NotifySensorError() {
   FOR_EACH_OBSERVER(Client, clients_, OnSensorError());
 }
 
 bool PlatformSensor::UpdateSensorInternal(const ConfigMap& configurations) {
   const PlatformSensorConfiguration* optimal_configuration = nullptr;
   for (const auto& pair : configurations) {
@@ skipping 10 matching lines @@
 
   if (!optimal_configuration) {
     StopSensor();
     return true;
   }
 
   return StartSensor(*optimal_configuration);
 }
 
 }  // namespace device