Revert of Don't set -fvisibility=hidden for iOS Debug in GYP.

Revert of Don't set -fvisibility=hidden for iOS Debug in GYP. (patchset #1 id:1 of https://codereview.chromium.org/1533003002/ )

Reason for revert:
fails compile on xcodebuild + device

Original issue's description:
> Don't set -fvisibility=hidden for iOS Debug in GYP.
>
> Remove -fvisibility=hidden for Debug configuration on iOS at the
> top level (common.gypi), so we don't remove symbols from
> dependencies.
>
> BUG=569073
>
> Committed: https://crrev.com/b17fbf8f6b05bd868b1555bcbda50c9dfad1946f
> Cr-Commit-Position: refs/heads/master@{#366106}

TBR=dpranke@google.com,dpranke@chromium.org
NOPRESUBMIT=true
NOTREECHECKS=true
NOTRY=true
BUG=569073
Committed: https://crrev.com/4f8c7cc523c6d1453531b7f0e16cc66c1c4a84fa
Cr-Commit-Position: refs/heads/master@{#366107}

[baxley, 2015-12-18 16:45:55]

Created Revert of Don't set -fvisibility=hidden for iOS Debug in GYP.

[commit-bot: I haz the power, 2015-12-18 16:46:22]

CQ is trying da patch. Follow status at
 https://chromium-cq-status.appspot.com/patch-status/1538573005/1
View timeline at
 https://chromium-cq-status.appspot.com/patch-timeline/1538573005/1

[commit-bot: I haz the power, 2015-12-18 16:46:23]

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

[commit-bot: I haz the power, 2015-12-18 16:46:23]

No L-G-T-M from a valid reviewer yet. Only full committers are accepted.
Even if an L-G-T-M may have been provided, it was from a non-committer,
_not_ a full super star committer.
See http://www.chromium.org/getting-involved/become-a-committer
Note that this has nothing to do with OWNERS files.

[mmenke, 2015-12-18 16:46:49]

On 2015/12/18 16:46:23, commit-bot: I haz the power wrote:
> No L-G-T-M from a valid reviewer yet. Only full committers are accepted.
> Even if an L-G-T-M may have been provided, it was from a non-committer,
> _not_ a full super star committer.
> See http://www.chromium.org/getting-involved/become-a-committer
> Note that this has nothing to do with OWNERS files.

LGTM

[mmenke, 2015-12-18 16:46:56]

The CQ bit was checked by mmenke@chromium.org

[commit-bot: I haz the power, 2015-12-18 16:47:10]

CQ is trying da patch. Follow status at
 https://chromium-cq-status.appspot.com/patch-status/1538573005/1
View timeline at
 https://chromium-cq-status.appspot.com/patch-timeline/1538573005/1

[commit-bot: I haz the power, 2015-12-18 16:48:08]

Committed patchset #1 (id:1)

[commit-bot: I haz the power, 2015-12-18 16:49:15]

Description was changed from

==========
Revert of Don't set -fvisibility=hidden for iOS Debug in GYP. (patchset #1 id:1
of https://codereview.chromium.org/1533003002/ )

Reason for revert:
fails compile on xcodebuild + device

Original issue's description:
> Don't set -fvisibility=hidden for iOS Debug in GYP.
> 
> Remove -fvisibility=hidden for Debug configuration on iOS at the
> top level (common.gypi), so we don't remove symbols from
> dependencies.
> 
> BUG=569073
> 
> Committed: https://crrev.com/b17fbf8f6b05bd868b1555bcbda50c9dfad1946f
> Cr-Commit-Position: refs/heads/master@{#366106}

TBR=dpranke@google.com,dpranke@chromium.org
NOPRESUBMIT=true
NOTREECHECKS=true
NOTRY=true
BUG=569073
==========

to

==========
Revert of Don't set -fvisibility=hidden for iOS Debug in GYP. (patchset #1 id:1
of https://codereview.chromium.org/1533003002/ )

Reason for revert:
fails compile on xcodebuild + device

Original issue's description:
> Don't set -fvisibility=hidden for iOS Debug in GYP.
>
> Remove -fvisibility=hidden for Debug configuration on iOS at the
> top level (common.gypi), so we don't remove symbols from
> dependencies.
>
> BUG=569073
>
> Committed: https://crrev.com/b17fbf8f6b05bd868b1555bcbda50c9dfad1946f
> Cr-Commit-Position: refs/heads/master@{#366106}

TBR=dpranke@google.com,dpranke@chromium.org
NOPRESUBMIT=true
NOTREECHECKS=true
NOTRY=true
BUG=569073

Committed: https://crrev.com/4f8c7cc523c6d1453531b7f0e16cc66c1c4a84fa
Cr-Commit-Position: refs/heads/master@{#366107}
==========

[commit-bot: I haz the power, 2015-12-18 16:49:16]

Patchset 1 (id:??) landed as
https://crrev.com/4f8c7cc523c6d1453531b7f0e16cc66c1c4a84fa
Cr-Commit-Position: refs/heads/master@{#366107}

[Dirk Pranke, 2015-12-18 17:29:25]

lgtm