Add trace to the caller of QuotaManager::GetAvailableSpace

storage/browser/quota/quota_task.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/quota_task.h"
 
 #include <algorithm>
 #include <functional>
 
 #include "base/bind.h"
 #include "base/location.h"
 #include "base/message_loop/message_loop.h"
 #include "base/thread_task_runner_handle.h"
+#include "base/trace_event/trace_event.h"

[michaeln, 2015/10/09 22:10:39]

use it or lose it

[oshima, 2015/10/09 22:36:48]

removed

 
 using base::TaskRunner;
 
 namespace storage {
 
 // QuotaTask ---------------------------------------------------------------
 
 QuotaTask::~QuotaTask() {
 }
 
@@ skipping 45 matching lines @@
 void QuotaTaskObserver::RegisterTask(QuotaTask* task) {
   running_quota_tasks_.insert(task);
 }
 
 void QuotaTaskObserver::UnregisterTask(QuotaTask* task) {
   DCHECK(running_quota_tasks_.find(task) != running_quota_tasks_.end());
   running_quota_tasks_.erase(task);
 }
 
 }  // namespace storage