chromium/src/third_party/blink/renderer/modules/quota/dom_window_quota.cc

/*
 * Copyright (C) 2012 Google Inc. All rights reserved.
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#include "third_party/blink/renderer/modules/quota/dom_window_quota.h"

#include "base/memory/scoped_refptr.h"
#include "third_party/blink/renderer/core/frame/local_dom_window.h"
#include "third_party/blink/renderer/core/frame/local_frame.h"
#include "third_party/blink/renderer/modules/quota/deprecated_storage_info.h"

namespace blink {

DOMWindowQuota::DOMWindowQuota(LocalDOMWindow& window)
    : Supplement<LocalDOMWindow>(window) {}

const char DOMWindowQuota::kSupplementName[] = "DOMWindowQuota";

// static
DOMWindowQuota& DOMWindowQuota::From(LocalDOMWindow& window) {
  DOMWindowQuota* supplement =
      Supplement<LocalDOMWindow>::From<DOMWindowQuota>(window);
  if (!supplement) {
    supplement = MakeGarbageCollected<DOMWindowQuota>(window);
    ProvideTo(window, supplement);
  }
  return *supplement;
}

// static
DeprecatedStorageInfo* DOMWindowQuota::webkitStorageInfo(
    LocalDOMWindow& window) {
  return DOMWindowQuota::From(window).webkitStorageInfo();
}

DeprecatedStorageInfo* DOMWindowQuota::webkitStorageInfo() const {
  if (!storage_info_)
    storage_info_ = MakeGarbageCollected<DeprecatedStorageInfo>();
  return storage_info_.Get();
}

void DOMWindowQuota::Trace(Visitor* visitor) const {
  visitor->Trace(storage_info_);
  Supplement<LocalDOMWindow>::Trace(visitor);
}

}  // namespace blink