void CachedResource::tryReplaceEncodedData(PassRefPtr<SharedBuffer> newBuffer)
{
if (!m_data)
return;
if (!mayTryReplaceEncodedData())
return;
ASSERT(m_data->size() == newBuffer->size());
ASSERT(!memcmp(m_data->data(), newBuffer->data(), m_data->size()));
m_data->tryReplaceSharedBufferContents(newBuffer.get());
}
void CachedResource::tryReplaceEncodedData(SharedBuffer& newBuffer)
{
if (!m_data)
return;
if (!mayTryReplaceEncodedData())
return;
// We have to do the memcmp because we can't tell if the replacement file backed data is for the
// same resource or if we made a second request with the same URL which gave us a different
// resource. We have seen this happen for cached POST resources.
if (m_data->size() != newBuffer.size() || memcmp(m_data->data(), newBuffer.data(), m_data->size()))
return;
if (m_data->tryReplaceContentsWithPlatformBuffer(newBuffer))
didReplaceSharedBufferContents();
}
