This is used by pyauto test perf.PerfTest.testV8BenchmarkSuite.
It is used without modification, unlike version 4 which is used
by other ui perf tests.

BUG=None
TEST=None

Review URL: http://codereview.chromium.org/7590027

git-svn-id: svn://svn.chromium.org/chrome/trunk/src@96206 0039d316-1c4b-4281-b951-d872f2087c98