Revert XMLHttpRequest's receive-as-blob implementation back to use memory until Chromium is fixed

Revert XMLHttpRequest's receive-as-blob implementation back to use memory until Chromium is fixed

The RedirectToFile functionality of Chromium on which the current
optimized [1] receive-as-blob code of XHR depends is broken.
Because of the bug, XHR::didDownloadData() handler may be invoked after
XHR::didFinishLoading(). See [2] for detail. As it seems the fix is not
ready for landing but the impact of the bug is big, I'd like to first
revert the optimization in Blink until Chromium is fixed well.

[1] http://src.chromium.org/viewvc/blink?view=revision&revision=163141
[2] https://codereview.chromium.org/82273002/

BUG=347663
Committed: https://src.chromium.org/viewvc/blink?view=rev&revision=168993

[abarth-chromium, 2014-03-10 21:28:35]

Ok.  LGTM

[abarth-chromium, 2014-03-10 21:28:38]

The CQ bit was checked by abarth@chromium.org

[commit-bot: I haz the power, 2014-03-10 21:29:01]

CQ is trying da patch. Follow status at
https://chromium-status.appspot.com/cq/tyoshino@chromium.org/190583004/10001

[commit-bot: I haz the power, 2014-03-10 22:10:36]

The CQ bit was unchecked by commit-bot@chromium.org

[commit-bot: I haz the power, 2014-03-10 22:10:37]

Try jobs failed on following builders: mac_blink_rel

[tyoshino (SeeGerritForStatus), 2014-03-11 02:16:11]

Forgot to update the expectation for
http/tests/inspector/network/network-xhr-async-response-type-blob.html. To do
the optimization, we stopped passing the received contents to the inspector, so
the expectation is set to null. We need to rollback it too.

[tyoshino (SeeGerritForStatus), 2014-03-11 15:27:17]

The CQ bit was checked by tyoshino@chromium.org

[commit-bot: I haz the power, 2014-03-11 15:27:27]

CQ is trying da patch. Follow status at
https://chromium-status.appspot.com/cq/tyoshino@chromium.org/190583004/30001

[commit-bot: I haz the power, 2014-03-11 16:38:33]

The CQ bit was unchecked by commit-bot@chromium.org

[commit-bot: I haz the power, 2014-03-11 16:38:33]

Try jobs failed on following builders: linux_blink

[tyoshino (SeeGerritForStatus), 2014-03-11 16:41:39]

The CQ bit was checked by tyoshino@chromium.org

[commit-bot: I haz the power, 2014-03-11 16:41:53]

CQ is trying da patch. Follow status at
https://chromium-status.appspot.com/cq/tyoshino@chromium.org/190583004/30001

[commit-bot: I haz the power, 2014-03-11 17:57:03]

The CQ bit was unchecked by commit-bot@chromium.org

[commit-bot: I haz the power, 2014-03-11 17:57:06]

Try jobs failed on following builders: linux_blink

[tyoshino (SeeGerritForStatus), 2014-03-12 00:31:26]

The CQ bit was checked by tyoshino@chromium.org

[commit-bot: I haz the power, 2014-03-12 00:31:37]

CQ is trying da patch. Follow status at
https://chromium-status.appspot.com/cq/tyoshino@chromium.org/190583004/30001

[commit-bot: I haz the power, 2014-03-12 05:08:47]

The CQ bit was unchecked by commit-bot@chromium.org

[commit-bot: I haz the power, 2014-03-12 05:08:48]

Try jobs failed on following builders: linux_blink

[tyoshino (SeeGerritForStatus), 2014-03-12 05:12:01]

The CQ bit was checked by tyoshino@chromium.org

[commit-bot: I haz the power, 2014-03-12 05:12:08]

CQ is trying da patch. Follow status at
https://chromium-status.appspot.com/cq/tyoshino@chromium.org/190583004/30001

[commit-bot: I haz the power, 2014-03-12 08:02:24]

Change committed as 168993