Update speedometer patch to provide better UI, fix merge result bug and add "Score" metric to speedometer benchmark.
https://bugs.webkit.org/show_bug.cgi?id=144487
Patch by Dewei Zhu <dewei_zhu@apple.com> on 2015-05-01
Reviewed by Ryosuke Niwa.
* Scripts/webkitpy/benchmark_runner/benchmark_runner.py:
(BenchmarkRunner.merge): Fix bug.
* Scripts/webkitpy/benchmark_runner/data/patches/Speedometer.patch: Update appearance and add "Score" metric.
git-svn-id: https://svn.webkit.org/repository/webkit/trunk@183685
268f45cc-cd09-0410-ab3c-
d52691b4dbfc