Revert of Update the V8 version for Chromium branch 56.

Revert of Update the V8 version for Chromium branch 56. (patchset #2 id:20001 of https://codereview.chromium.org/2513573003/ )

Reason for revert:
There's several breakages with this CL in the blame list.

Original issue's description:
> Update the V8 version for Chromium branch 56.
>
> This is a roll-back to 5.6.309. This is the most stable candidate out of the latest Canaries.
>
> If this commit results in failures in Blink please contact the Blink sheriff. They may need to make changes to Blink because of the roll-back.
>
> When in doubt please try to contact the committer and reviewers of this CL before reverting it.
>
> TBR=machenbach@chromium.org
> NOTRY=true
>
> Committed: https://crrev.com/194ed1a9cf5a86775bca4f976bc9e8b7c3f733d6
> Cr-Commit-Position: refs/heads/master@{#432876}

TBR=machenbach@chromium.org
# Skipping CQ checks because original CL landed less than 1 days ago.
NOPRESUBMIT=true
NOTREECHECKS=true
NOTRY=true

Committed: https://crrev.com/41ad5a846d44f2134f7975c38d305c13321a90d5
Cr-Commit-Position: refs/heads/master@{#432890}

[vogelheim, 2016-11-17 16:30:48]

The CQ bit was checked by vogelheim@chromium.org

[vogelheim, 2016-11-17 16:30:48]

Created Revert of Update the V8 version for Chromium branch 56.

[commit-bot: I haz the power, 2016-11-17 16:31:47]

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, 2016-11-17 16:32:41]

Committed patchset #1 (id:1)

[commit-bot: I haz the power, 2016-11-17 16:34:53]

Description was changed from

==========
Revert of Update the V8 version for Chromium branch 56. (patchset #2 id:20001 of
https://codereview.chromium.org/2513573003/ )

Reason for revert:
There's several breakages with this CL in the blame list.

Original issue's description:
> Update the V8 version for Chromium branch 56.
> 
> This is a roll-back to 5.6.309. This is the most stable candidate out of the
latest Canaries.
> 
> If this commit results in failures in Blink please contact the Blink sheriff.
They may need to make changes to Blink because of the roll-back.
> 
> When in doubt please try to contact the committer and reviewers of this CL
before reverting it.
> 
> TBR=machenbach@chromium.org
> NOTRY=true
> 
> Committed: https://crrev.com/194ed1a9cf5a86775bca4f976bc9e8b7c3f733d6
> Cr-Commit-Position: refs/heads/master@{#432876}

TBR=machenbach@chromium.org
# Skipping CQ checks because original CL landed less than 1 days ago.
NOPRESUBMIT=true
NOTREECHECKS=true
NOTRY=true
==========

to

==========
Revert of Update the V8 version for Chromium branch 56. (patchset #2 id:20001 of
https://codereview.chromium.org/2513573003/ )

Reason for revert:
There's several breakages with this CL in the blame list.

Original issue's description:
> Update the V8 version for Chromium branch 56.
>
> This is a roll-back to 5.6.309. This is the most stable candidate out of the
latest Canaries.
>
> If this commit results in failures in Blink please contact the Blink sheriff.
They may need to make changes to Blink because of the roll-back.
>
> When in doubt please try to contact the committer and reviewers of this CL
before reverting it.
>
> TBR=machenbach@chromium.org
> NOTRY=true
>
> Committed: https://crrev.com/194ed1a9cf5a86775bca4f976bc9e8b7c3f733d6
> Cr-Commit-Position: refs/heads/master@{#432876}

TBR=machenbach@chromium.org
# Skipping CQ checks because original CL landed less than 1 days ago.
NOPRESUBMIT=true
NOTREECHECKS=true
NOTRY=true

Committed: https://crrev.com/41ad5a846d44f2134f7975c38d305c13321a90d5
Cr-Commit-Position: refs/heads/master@{#432890}
==========

[commit-bot: I haz the power, 2016-11-17 16:34:54]

Patchset 1 (id:??) landed as
https://crrev.com/41ad5a846d44f2134f7975c38d305c13321a90d5
Cr-Commit-Position: refs/heads/master@{#432890}

[Michael Achenbach, 2016-11-17 16:45:49]

lgtm