components: Change auto to not deduce raw pointers.

components/proximity_auth/ble/bluetooth_low_energy_characteristics_finder.cc

 // Copyright 2015 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/proximity_auth/ble/bluetooth_low_energy_characteristics_finder.h"
 
 #include "components/proximity_auth/logging/logging.h"
 #include "device/bluetooth/bluetooth_adapter.h"
 #include "device/bluetooth/bluetooth_device.h"
 #include "device/bluetooth/bluetooth_remote_gatt_characteristic.h"
@@ skipping 73 matching lines @@
 
 void BluetoothLowEnergyCharacteristicsFinder::ScanRemoteCharacteristics(
     BluetoothDevice* device,
     const BluetoothUUID& service_uuid) {
   PA_LOG(INFO) << "Scanning remote characteristics.";
   if (device) {
     std::vector<BluetoothRemoteGattService*> services =
         device->GetGattServices();
     PA_LOG(INFO) << device->GetAddress() << " has " << services.size()
                  << " services.";
-    for (const auto& service : services) {
+    for (const auto* service : services) {
       if (service->GetUUID() == service_uuid) {
         // Right service found, now scaning its characteristics.
         std::vector<device::BluetoothRemoteGattCharacteristic*>
             characteristics = service->GetCharacteristics();
         PA_LOG(INFO) << "Service " << service_uuid.canonical_value() << " has "
                      << characteristics.size() << " characteristics.";
-        for (const auto& characteristic : characteristics) {
+        for (auto* characteristic : characteristics) {
           HandleCharacteristicUpdate(characteristic);
         }
         break;
       }
     }
   }
 }
 
 void BluetoothLowEnergyCharacteristicsFinder::HandleCharacteristicUpdate(
     BluetoothRemoteGattCharacteristic* characteristic) {
@@ skipping 22 matching lines @@
     remote_service_.id = service->GetIdentifier();
   }
 }
 
 void BluetoothLowEnergyCharacteristicsFinder::ResetCallbacks() {
   success_callback_.Reset();
   error_callback_.Reset();
 }
 
 }  // namespace proximity_auth