Revert 112446: It looks like it regresses dom perf. See http://crbug.com/106137

 - Update V8 to version 3.7.12.

Review URL: http://codereview.chromium.org/8769004

TBR=svenpanne@chromium.org
Review URL: http://codereview.chromium.org/8772030

git-svn-id: svn://svn.chromium.org/chrome/trunk/src@112592 0039d316-1c4b-4281-b951-d872f2087c98

DEPS

@@ -38,7 +38,7 @@ vars = {
   # Three lines of non-changing comments so that
   # the commit queue can handle CLs rolling Skia
   # and V8 without interference from each other.
-  "v8_revision": "10105",
+  "v8_revision": "10089",
   "webrtc_revision": "1027",
   "jsoncpp_revision": "246",
 }