[FastTextAutosizer] Remove comment about storing a fingerprint stack

[FastTextAutosizer] Remove comment about storing a fingerprint stack

This comment is no longer true (it may have never been either). The
fingerprint logic is fairly cheap because we cache the parent hash.

TBR=skobes
NOTRY=true

Committed: https://src.chromium.org/viewvc/blink?view=rev&revision=169708

[pdr., 2014-03-20 23:20:03]

The CQ bit was checked by pdr@chromium.org

[commit-bot: I haz the power, 2014-03-20 23:20:12]

CQ is trying da patch. Follow status at
https://chromium-status.appspot.com/cq/pdr@chromium.org/207193002/1

[skobes, 2014-03-20 23:21:21]

lgtm

[commit-bot: I haz the power, 2014-03-20 23:21:42]

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

[commit-bot: I haz the power, 2014-03-20 23:21:43]

Try jobs failed on following builders:
  tryserver.blink on win_blink_rel

[pdr., 2014-03-20 23:23:24]

On 2014/03/20 23:21:43, I haz the power (commit-bot) wrote:
> Try jobs failed on following builders:
>   tryserver.blink on win_blink_rel

Oh come on. crbug.com/341317

[pdr., 2014-03-20 23:24:03]

The CQ bit was checked by pdr@chromium.org

[commit-bot: I haz the power, 2014-03-20 23:24:18]

CQ is trying da patch. Follow status at
https://chromium-status.appspot.com/cq/pdr@chromium.org/207193002/1

[commit-bot: I haz the power, 2014-03-20 23:25:09]

Change committed as 169708