Convert a couple loops to range based iterators.

components/pairing/bluetooth_controller_pairing_controller.cc

 // Copyright 2014 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 "components/pairing/bluetooth_controller_pairing_controller.h"
 
 #include "base/bind.h"
 #include "base/logging.h"
 #include "base/strings/string_util.h"
 #include "base/strings/stringprintf.h"
@@ skipping 119 matching lines @@
                    ptr_factory_.GetWeakPtr()));
   }
 }
 
 void BluetoothControllerPairingController::OnStartDiscoverySession(
     scoped_ptr<device::BluetoothDiscoverySession> discovery_session) {
   DCHECK(thread_checker_.CalledOnValidThread());
   discovery_session_ = discovery_session.Pass();
   ChangeStage(STAGE_DEVICES_DISCOVERY);
 
-  device::BluetoothAdapter::DeviceList device_list = adapter_->GetDevices();
-  for (device::BluetoothAdapter::DeviceList::iterator ix = device_list.begin();
-       ix != device_list.end(); ++ix) {
-    DeviceFound(*ix);
-  }
+  for (const auto& device : adapter_->GetDevices())
+    DeviceFound(device);
 }
 
 void BluetoothControllerPairingController::OnConnect() {
   DCHECK(thread_checker_.CalledOnValidThread());
   device::BluetoothDevice* device = GetController();
   if (device) {
     device->ConnectToService(
         device::BluetoothUUID(kPairingServiceUUID),
         base::Bind(&BluetoothControllerPairingController::OnConnectToService,
                    ptr_factory_.GetWeakPtr()),
@@ skipping 303 matching lines @@
   ChangeStage(STAGE_WAITING_FOR_CODE_CONFIRMATION);
 }
 
 void BluetoothControllerPairingController::AuthorizePairing(
     device::BluetoothDevice* device) {
   // Disallow unknown device.
   device->RejectPairing();
 }
 
 }  // namespace pairing_chromeos