Revert of GN: Normalize the build directory path

Revert of GN: Normalize the build directory path (patchset #1 id:1 of https://codereview.chromium.org/1707293002/ )

Reason for revert:
Doesn't work when the build directory does not exit.

Original issue's description:
> GN: Normalize the build directory path
>
> BUG=586906
> TEST=ln -s /tmp out_tmp && out/gn/gn gen //out_tmp/Release
>
> Committed: https://crrev.com/62b5ce373ce17228a3c06f3e32ff329180e89921
> Cr-Commit-Position: refs/heads/master@{#376288}

TBR=brettw@chromium.org
# Not skipping CQ checks because original CL landed more than 1 days ago.
BUG=586906
Committed: https://crrev.com/14bbbf277bf50e0103891dd2ad80aa8d091fe6d5
Cr-Commit-Position: refs/heads/master@{#376710}

[hashimoto, 2016-02-22 09:39:37]

Created Revert of GN: Normalize the build directory path

[commit-bot: I haz the power, 2016-02-22 09:39:59]

CQ is trying da patch. Follow status at
 https://chromium-cq-status.appspot.com/patch-status/1723453002/1
View timeline at
 https://chromium-cq-status.appspot.com/patch-timeline/1723453002/1

[commit-bot: I haz the power, 2016-02-22 10:03:26]

CQ is trying da patch. Follow status at
 https://chromium-cq-status.appspot.com/patch-status/1723453002/1
View timeline at
 https://chromium-cq-status.appspot.com/patch-timeline/1723453002/1

[commit-bot: I haz the power, 2016-02-22 10:11:37]

Committed patchset #1 (id:1)

[commit-bot: I haz the power, 2016-02-22 10:12:44]

Description was changed from

==========
Revert of GN: Normalize the build directory path (patchset #1 id:1 of
https://codereview.chromium.org/1707293002/ )

Reason for revert:
Doesn't work when the build directory does not exit.

Original issue's description:
> GN: Normalize the build directory path
> 
> BUG=586906
> TEST=ln -s /tmp out_tmp && out/gn/gn gen //out_tmp/Release
> 
> Committed: https://crrev.com/62b5ce373ce17228a3c06f3e32ff329180e89921
> Cr-Commit-Position: refs/heads/master@{#376288}

TBR=brettw@chromium.org
# Not skipping CQ checks because original CL landed more than 1 days ago.
BUG=586906
==========

to

==========
Revert of GN: Normalize the build directory path (patchset #1 id:1 of
https://codereview.chromium.org/1707293002/ )

Reason for revert:
Doesn't work when the build directory does not exit.

Original issue's description:
> GN: Normalize the build directory path
>
> BUG=586906
> TEST=ln -s /tmp out_tmp && out/gn/gn gen //out_tmp/Release
>
> Committed: https://crrev.com/62b5ce373ce17228a3c06f3e32ff329180e89921
> Cr-Commit-Position: refs/heads/master@{#376288}

TBR=brettw@chromium.org
# Not skipping CQ checks because original CL landed more than 1 days ago.
BUG=586906

Committed: https://crrev.com/14bbbf277bf50e0103891dd2ad80aa8d091fe6d5
Cr-Commit-Position: refs/heads/master@{#376710}
==========

[commit-bot: I haz the power, 2016-02-22 10:12:44]

Patchset 1 (id:??) landed as
https://crrev.com/14bbbf277bf50e0103891dd2ad80aa8d091fe6d5
Cr-Commit-Position: refs/heads/master@{#376710}