Revert of Cleanup: Update the path to vector2d_f.h header.

Revert of Cleanup: Update the path to vector2d_f.h header. (patchset #1 id:1 of https://codereview.chromium.org/781863004/)

Reason for revert:
Breaks Win8 GN and Win8 GN(dbg) builders

Original issue's description:
> Cleanup: Update the path to vector2d_f.h header.
>
> The geometry headers were moved from /ui/gfx/ to ui/gfx/geometry, so
> we are updating the include paths to fix this.
>
> BUG=395370
> TEST=gfx_unittests
> TBR=sky@chromium.org,danakj@chromium.org
>
> Committed: https://crrev.com/b486216287a3e1f30e81f70444f889d321b7819a
> Cr-Commit-Position: refs/heads/master@{#306960}

TBR=danakj@chromium.org,sky@chromium.org,tfarina@chromium.org
NOTREECHECKS=true
NOTRY=true
BUG=395370
Committed: https://crrev.com/0dffffd306e8e21bd027b26e947ec8b5ffcdfa51
Cr-Commit-Position: refs/heads/master@{#306962}

[samli, 2014-12-05 03:07:35]

Created Revert of Cleanup: Update the path to vector2d_f.h header.

[commit-bot: I haz the power, 2014-12-05 03:08:23]

CQ is trying da patch. Follow status at
 https://chromium-cq-status.appspot.com/patch-status/771283003/1

[commit-bot: I haz the power, 2014-12-05 03:09:39]

Committed patchset #1 (id:1)

[commit-bot: I haz the power, 2014-12-05 03:10:36]

Patchset 1 (id:??) landed as
https://crrev.com/0dffffd306e8e21bd027b26e947ec8b5ffcdfa51
Cr-Commit-Position: refs/heads/master@{#306962}

[tfarina, 2014-12-05 14:21:13]

Samuel, could you post here the failure you think this might have caused?

I'm very surprised this could have caused any breakage!

[tfarina, 2014-12-05 14:22:33]

A revert of this CL (patchset #1 id:1) has been created in
https://codereview.chromium.org/762063006/ by tfarina@chromium.org.

The reason for reverting is: This didn't cause the issue. As noted in
https://codereview.chromium.org/781863004/#msg8.