Revert "Intercept base::File Open/Close"

Revert "Intercept base::File Open/Close"

This reverts commit 45a0dc0b75b52e026eb15526ef441edc5dbe9ba5.
> Intercept base::File Open/Close
>
> When a file descriptor is opened by the base::File, all calls to close(3) from
> the same dynamic library will hit a CHECK unless they are made from a
> whitelist of callsites belonging to base::File.
>
> There is a handy protect_file_posix.gypi introduced to make it easy to enable
> on Chrome-for-Android.
>
> This 'linker magic' is somewhat crazy, so:
> 1. it will be *removed *when crbug.com/424562 is fixed
> 2. it should only be used by a whitelist of binaries/libraries (in the
>    opensource part: libchromeshell only)
>
> BUG=424562
>
> Review URL: https://codereview.chromium.org/676873004
>
> Cr-Commit-Position: refs/heads/master@{#304592}

Reason: crashes are not numerous, not much sense to fix, some explanations found
elsewhere.

BUG=424562
Committed: https://crrev.com/e1ceecf5545568261956de95fda59270a91d4ef0
Cr-Commit-Position: refs/heads/master@{#327051}

[pasko, 2015-04-24 19:13:49]

pasko@chromium.org changed reviewers:
+ thakis@chromium.org

[pasko, 2015-04-24 19:14:30]

Finally reverting the hack, please take a look.

[Nico, 2015-04-24 19:57:10]

lgtm, thanks!

[pasko, 2015-04-27 09:11:04]

The CQ bit was checked by pasko@chromium.org

[commit-bot: I haz the power, 2015-04-27 09:11:25]

CQ is trying da patch. Follow status at
 https://chromium-cq-status.appspot.com/patch-status/1101723004/1

[commit-bot: I haz the power, 2015-04-27 09:17:02]

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

[commit-bot: I haz the power, 2015-04-27 09:17:03]

Try jobs failed on following builders:
  chromium_presubmit on tryserver.chromium.linux (JOB_FAILED,
http://build.chromium.org/p/tryserver.chromium.linux/builders/chromium_presub...)

[pasko, 2015-04-27 10:51:39]

pasko@chromium.org changed reviewers:
+ brettw@chromium.org

[pasko, 2015-04-27 10:52:04]

brettw: please review the one line change in BUILD.gn

[brettw, 2015-04-27 15:36:40]

lgtm

[pasko, 2015-04-27 15:51:42]

The CQ bit was checked by pasko@chromium.org

[commit-bot: I haz the power, 2015-04-27 15:51:59]

CQ is trying da patch. Follow status at
 https://chromium-cq-status.appspot.com/patch-status/1101723004/1

[commit-bot: I haz the power, 2015-04-27 15:55:24]

Committed patchset #1 (id:1)

[commit-bot: I haz the power, 2015-04-27 15:56:25]

Patchset 1 (id:??) landed as
https://crrev.com/e1ceecf5545568261956de95fda59270a91d4ef0
Cr-Commit-Position: refs/heads/master@{#327051}