Cleanup AppCacheQuotaClient using new Callback

webkit/appcache/appcache_storage_impl.cc

 // Copyright (c) 2011 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 "webkit/appcache/appcache_storage_impl.h"
 
 #include <algorithm>
 #include <functional>
 #include <set>
 #include <vector>
@@ skipping 531 matching lines @@
   if (!quota_manager) {
     if (storage_->service()->special_storage_policy() &&
         storage_->service()->special_storage_policy()->IsStorageUnlimited(
             group_record_.origin))
       space_available_ = kint64max;
     Schedule();
     return;
   }
 
   // We have to ask the quota manager for the value.
-  AddRef();  // balanced in the OnQuotaCallback
   storage_->pending_quota_queries_.insert(this);
   quota_manager->GetUsageAndQuota(
       group_record_.origin, quota::kStorageTypeTemporary,
-      base::Bind(&StoreGroupAndCacheTask::OnQuotaCallback,
-                 base::Unretained(this)));
+      base::Bind(&StoreGroupAndCacheTask::OnQuotaCallback, this));
 }
 
 void AppCacheStorageImpl::StoreGroupAndCacheTask::OnQuotaCallback(
     quota::QuotaStatusCode status, int64 usage, int64 quota) {
   if (storage_) {
     if (status == quota::kQuotaStatusOk)
       space_available_ = std::max(static_cast<int64>(0), quota - usage);
     else
       space_available_ = 0;
     storage_->pending_quota_queries_.erase(this);
     Schedule();
   }
-  Release();  // balanced in GetQuotaThenSchedule
 }
 
 void AppCacheStorageImpl::StoreGroupAndCacheTask::Run() {
   DCHECK(!success_);
   sql::Connection* connection = database_->db_connection();
   if (!connection)
     return;
 
   sql::Transaction transaction(connection);
   if (!transaction.Begin())
@@ skipping 1071 matching lines @@
     Disable();
     if (!is_incognito_) {
       VLOG(1) << "Deleting existing appcache data and starting over.";
       db_thread_->PostTask(FROM_HERE,
           NewRunnableFunction(DeleteDirectory, cache_directory_));
     }
   }
 }
 
 }  // namespace appcache