third_party/WebKit/Source/modules/crypto/DOMWindowCrypto.cpp

/*
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#include "modules/crypto/DOMWindowCrypto.h"

#include "core/frame/LocalDOMWindow.h"
#include "modules/crypto/Crypto.h"

namespace blink {

DOMWindowCrypto::DOMWindowCrypto(LocalDOMWindow& window)
    : DOMWindowProperty(window.frame())
{
}

DEFINE_EMPTY_DESTRUCTOR_WILL_BE_REMOVED(DOMWindowCrypto);

const char* DOMWindowCrypto::supplementName()
{
    return "DOMWindowCrypto";
}

DOMWindowCrypto& DOMWindowCrypto::from(LocalDOMWindow& window)
{
    DOMWindowCrypto* supplement = static_cast<DOMWindowCrypto*>(WillBeHeapSupplement<LocalDOMWindow>::from(window, supplementName()));
    if (!supplement) {
        supplement = new DOMWindowCrypto(window);
        provideTo(window, supplementName(), adoptPtrWillBeNoop(supplement));
    }
    return *supplement;
}

Crypto* DOMWindowCrypto::crypto(DOMWindow& window)
{
    return DOMWindowCrypto::from(toLocalDOMWindow(window)).crypto();
}

Crypto* DOMWindowCrypto::crypto() const
{
    if (!m_crypto && frame())
        m_crypto = Crypto::create();
    return m_crypto.get();
}

DEFINE_TRACE(DOMWindowCrypto)
{
    visitor->trace(m_crypto);
    WillBeHeapSupplement<LocalDOMWindow>::trace(visitor);
    DOMWindowProperty::trace(visitor);
}

} // namespace blink