Revert of Update V8 to version 4.3.10.

Revert of Update V8 to version 4.3.10. (patchset #1 id:1 of https://codereview.chromium.org/965873003/)

Reason for revert:
This revert apparently also didn't help. Relanding...

Original issue's description:
> Update V8 to version 4.3.10.
> 
> Summary of changes available at:
> https://chromium.googlesource.com/v8/v8/+log/27a38796..627ffe9a
> 
> Please follow these instructions for assigning/CC'ing issues:
> https://code.google.com/p/v8-wiki/wiki/TriagingIssues
> 
> TBR=machenbach@chromium.org
> 
> Committed: https://crrev.com/a4c7ab8af2530c04fb32939585d3b021aa7d9363
> Cr-Commit-Position: refs/heads/master@{#318556}

TBR=v8-autoroll@chromium.org
NOPRESUBMIT=true
NOTREECHECKS=true
NOTRY=true

[Michael Achenbach, 2015-02-28 14:16:36]

Created Revert of Update V8 to version 4.3.10.

[commit-bot: I haz the power, 2015-02-28 14:17:12]

CQ is trying da patch. Follow status at
 https://chromium-cq-status.appspot.com/patch-status/958323003/1

[commit-bot: I haz the power, 2015-02-28 14:17:40]

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

[commit-bot: I haz the power, 2015-02-28 14:17:41]

Failed to apply patch for DEPS:
While running git apply --index -3 -p1;
  error: patch failed: DEPS:47
  error: repository lacks the necessary blob to fall back on 3-way merge.
  error: DEPS: patch does not apply

Patch:       DEPS
Index: DEPS
diff --git a/DEPS b/DEPS
index
f1e6bf475e9183bf7439b7c3552fd5996451aff5..34e7380d7292e496f5346ab97a300063ee7af256
100644
--- a/DEPS
+++ b/DEPS
@@ -47,7 +47,7 @@
   # the commit queue can handle CLs rolling Skia
   # and V8 without interference from each other.
   'v8_branch': 'trunk',
-  'v8_revision': '369eb13a86b0529acd80b3b73b6c2a796224f3a7',
+  'v8_revision': '4d973b963545537e3d44d604beacfb5b18ff64a7',
   # Three lines of non-changing comments so that
   # the commit queue can handle CLs rolling WebRTC
   # and V8 without interference from each other.

[Michael Achenbach, 2015-02-28 14:21:08]

Ups - wrong CL.