Revert of Use ScaleToEnclosingRect when converting the viewport to window.

Revert of Use ScaleToEnclosingRect when converting the viewport to window. (patchset #1 id:1 of https://codereview.chromium.org/2258493002/ )

Reason for revert:
This seems to have broken virtual/scalefactor200withzoom/fast/hidpi/static/popup-menu-appearance.html.

Original issue's description:
> Use ScaleToEnclosingRect when converting the viewport to window.
>
> This guarantees that the viewport is always contained in the window.
>
> BUG=none
>
> Committed: https://crrev.com/88fd07f9af5311a6e85502aedca5ce94c9ddfe23
> Cr-Commit-Position: refs/heads/master@{#414452}

TBR=oshima@chromium.org,piman@chromium.org
# Skipping CQ checks because original CL landed less than 1 days ago.
NOPRESUBMIT=true
NOTREECHECKS=true
NOTRY=true
BUG=none

Committed: https://crrev.com/15b235a3d943722097ac5e050251a009ec341f28
Cr-Commit-Position: refs/heads/master@{#414469}

[lfg, 2016-08-25 17:44:40]

The CQ bit was checked by lfg@chromium.org

[lfg, 2016-08-25 17:44:40]

Created Revert of Use ScaleToEnclosingRect when converting the viewport to
window.

[commit-bot: I haz the power, 2016-08-25 17:45:15]

CQ is trying da patch. Follow status at
 
https://chromium-cq-status.appspot.com/v2/patch-status/codereview.chromium.or...

[commit-bot: I haz the power, 2016-08-25 17:46:08]

Committed patchset #1 (id:1)

[commit-bot: I haz the power, 2016-08-25 17:47:46]

Description was changed from

==========
Revert of Use ScaleToEnclosingRect when converting the viewport to window.
(patchset #1 id:1 of https://codereview.chromium.org/2258493002/ )

Reason for revert:
This seems to have broken
virtual/scalefactor200withzoom/fast/hidpi/static/popup-menu-appearance.html.

Original issue's description:
> Use ScaleToEnclosingRect when converting the viewport to window.
> 
> This guarantees that the viewport is always contained in the window.
> 
> BUG=none
> 
> Committed: https://crrev.com/88fd07f9af5311a6e85502aedca5ce94c9ddfe23
> Cr-Commit-Position: refs/heads/master@{#414452}

TBR=oshima@chromium.org,piman@chromium.org
# Skipping CQ checks because original CL landed less than 1 days ago.
NOPRESUBMIT=true
NOTREECHECKS=true
NOTRY=true
BUG=none
==========

to

==========
Revert of Use ScaleToEnclosingRect when converting the viewport to window.
(patchset #1 id:1 of https://codereview.chromium.org/2258493002/ )

Reason for revert:
This seems to have broken
virtual/scalefactor200withzoom/fast/hidpi/static/popup-menu-appearance.html.

Original issue's description:
> Use ScaleToEnclosingRect when converting the viewport to window.
>
> This guarantees that the viewport is always contained in the window.
>
> BUG=none
>
> Committed: https://crrev.com/88fd07f9af5311a6e85502aedca5ce94c9ddfe23
> Cr-Commit-Position: refs/heads/master@{#414452}

TBR=oshima@chromium.org,piman@chromium.org
# Skipping CQ checks because original CL landed less than 1 days ago.
NOPRESUBMIT=true
NOTREECHECKS=true
NOTRY=true
BUG=none

Committed: https://crrev.com/15b235a3d943722097ac5e050251a009ec341f28
Cr-Commit-Position: refs/heads/master@{#414469}
==========

[commit-bot: I haz the power, 2016-08-25 17:47:47]

Patchset 1 (id:??) landed as
https://crrev.com/15b235a3d943722097ac5e050251a009ec341f28
Cr-Commit-Position: refs/heads/master@{#414469}