device: Change auto to not deduce raw pointers.

device/bluetooth/test/bluetooth_test_android.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 "device/bluetooth/test/bluetooth_test_android.h"
 
 #include <iterator>
 #include <sstream>
 
 #include "base/android/jni_array.h"
@@ skipping 24 matching lines @@
   // Register in SetUp so that ASSERT can be used.
   ASSERT_TRUE(RegisterNativesImpl(AttachCurrentThread()));
 
   // Set the permission to true so that we can use the API.
   Java_Fakes_setLocationServicesState(
       AttachCurrentThread(), true /* hasPermission */, true /* isEnabled */);
 }
 
 void BluetoothTestAndroid::TearDown() {
   BluetoothAdapter::DeviceList devices = adapter_->GetDevices();
-  for (auto& device : devices) {
+  for (auto* device : devices) {
     DeleteDevice(device);
   }
   EXPECT_EQ(0, gatt_open_connections_);
   BluetoothTestBase::TearDown();
 }
 
 bool BluetoothTestAndroid::PlatformSupportsLowEnergy() {
   return true;
 }
 
@@ skipping 421 matching lines @@
 }
 
 void BluetoothTestAndroid::OnFakeAdapterStateChanged(
     JNIEnv* env,
     const JavaParamRef<jobject>& caller,
     const bool powered) {
   adapter_->NotifyAdapterPoweredChanged(powered);
 }
 
 }  // namespace device