Revert 69546 - Revert 69525 - Update V8 to version 3.0.3.
Revert 69546 - Revert 69525 - Update V8 to version 3.0.3.

The Win Reliability bot has been red since about this change.
Reverting to see whether V8 is to blame.

Review URL: http://codereview.chromium.org/5977001

TBR=ager@chromium.org

Review URL: http://codereview.chromium.org/6008001

TBR=siggi@chromium.org
Review URL: http://codereview.chromium.org/6039001

git-svn-id: de016e52bd170d2d4f2344f9bf92d50478b649e0@69579 0039d316-1c4b-4281-b951-d872f2087c98

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