various: Change auto to not deduce raw pointers.

storage/browser/quota/usage_tracker.cc

 // Copyright 2013 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 "storage/browser/quota/usage_tracker.h"
 
 #include <stdint.h>
 
 #include <algorithm>
 
@@ skipping 14 matching lines @@
 
 }  // namespace
 
 UsageTracker::UsageTracker(const QuotaClientList& clients,
                            StorageType type,
                            SpecialStoragePolicy* special_storage_policy,
                            StorageMonitor* storage_monitor)
     : type_(type),
       storage_monitor_(storage_monitor),
       weak_factory_(this) {
-  for (const auto& client : clients) {
+  for (auto* client : clients) {
     if (client->DoesSupport(type)) {
       client_tracker_map_[client->id()] =
           new ClientUsageTracker(this, client, type, special_storage_policy,
                                  storage_monitor_);
     }
   }
 }
 
 UsageTracker::~UsageTracker() {
   STLDeleteValues(&client_tracker_map_);
@@ skipping 170 matching lines @@
   // Defend against confusing inputs from clients.
   if (info->usage < 0)
     info->usage = 0;
 
   // All the clients have returned their usage data.  Dispatch the
   // pending callbacks.
   host_usage_callbacks_.Run(host, info->usage);
 }
 
 }  // namespace storage