Increases the default page size for trybot results in Gold.
Increases the default page size for trybot results in Gold.

BUG=skia:
TBR=jcgregorio

Review URL: https://codereview.chromium.org/1610743002

google/skia-buildbot,google/skia-buildbot,google/skia-buildbot,google/skia-buildbot,google/skia-buildbot,google/skia-buildbot,google/skia-buildbot,google/skia-buildbot