New Mac baselines after http://src.chromium.org/viewvc/blink?revision=152850&view=revision.

TBR=fmalita
BUG=252414

Review URL: https://codereview.chromium.org/16874007

git-svn-id: svn://svn.chromium.org/blink/trunk@152873 bbb929c8-8fbe-4397-9dbb-9b2b20218538
Ensure that window size is <= 1 when zooming out in TimelineOverview

This upper boundary was accidentally removed in r152784

BUG=None
R=alph@chromium.org

Review URL: https://codereview.chromium.org/16900006

git-svn-id: svn://svn.chromium.org/blink/trunk@152874 bbb929c8-8fbe-4397-9dbb-9b2b20218538
Mark some fast/filesystem tests as slow/timeout.

TBR=dpranke

Review URL: https://codereview.chromium.org/17157017

git-svn-id: svn://svn.chromium.org/blink/trunk@152875 bbb929c8-8fbe-4397-9dbb-9b2b20218538