device: Change auto to not deduce raw pointers.

device/bluetooth/bluetooth_low_energy_win_fake.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/bluetooth/bluetooth_low_energy_win_fake.h"
 
 #include <memory>
 
 #include "base/memory/ptr_util.h"
 #include "base/strings/stringprintf.h"
@@ skipping 455 matching lines @@
   target_characteristic->value.reset(win_value);
 }
 
 void BluetoothLowEnergyWrapperFake::
     SimulateCharacteristicValueChangeNotification(
         GattCharacteristic* characteristic) {
   GattCharacteristic* target_characteristic = characteristic;
   if (target_characteristic == nullptr)
     target_characteristic = remembered_characteristic_;
   CHECK(target_characteristic);
-  for (const auto& observer : target_characteristic->observers) {
+  for (auto* observer : target_characteristic->observers) {
     GattCharacteristicObserverTable::const_iterator it =
         gatt_characteristic_observers_.find(observer);
     // Check if |observer| has been unregistered by UnregisterGattEvent.
     if (it != gatt_characteristic_observers_.end()) {
       BLUETOOTH_GATT_VALUE_CHANGED_EVENT event;
       event.ChangedAttributeHandle =
           target_characteristic->characteristic_info->AttributeHandle;
       event.CharacteristicValueDataSize =
           target_characteristic->value->DataSize + sizeof(ULONG);
       event.CharacteristicValue = target_characteristic->value.get();
@@ skipping 149 matching lines @@
 std::string BluetoothLowEnergyWrapperFake::BluetoothAddressToCanonicalString(
     const BLUETOOTH_ADDRESS& btha) {
   std::string result = base::StringPrintf(
       "%02X:%02X:%02X:%02X:%02X:%02X", btha.rgBytes[5], btha.rgBytes[4],
       btha.rgBytes[3], btha.rgBytes[2], btha.rgBytes[1], btha.rgBytes[0]);
   return result;
 }
 
 }  // namespace win
 }  // namespace device