Revert of Clean up the page state saving mechanism.

Revert of Clean up the page state saving mechanism. (patchset #2 id:20001 of https://codereview.chromium.org/689163002/)

Reason for revert:
This is a likely candidate for having broken lots of layout tests...

Original issue's description:
> Clean up the page state saving mechanism.
>
> BUG=416184
> TEST=as in bug
>
> Committed: https://crrev.com/133fac58dfe9ac1d2b0071ce107825adaad67cc7
> Cr-Commit-Position: refs/heads/master@{#302372}

TBR=creis@chromium.org,sky@chromium.org
NOTREECHECKS=true
NOTRY=true
BUG=416184
Committed: https://crrev.com/f937e1da7f7db9266daf7c5bd3700ad7e2892d3a
Cr-Commit-Position: refs/heads/master@{#302402}

[Avi (use Gerrit), 2014-11-02 18:12:27]

Created Revert of Clean up the page state saving mechanism.

[commit-bot: I haz the power, 2014-11-02 18:12:53]

CQ is trying da patch. Follow status at
 https://chromium-cq-status.appspot.com/patch-status/694963003/1

[commit-bot: I haz the power, 2014-11-02 18:13:16]

Committed patchset #1 (id:1)

[commit-bot: I haz the power, 2014-11-02 18:13:58]

Patchset 1 (id:??) landed as
https://crrev.com/f937e1da7f7db9266daf7c5bd3700ad7e2892d3a
Cr-Commit-Position: refs/heads/master@{#302402}