Adjust Page Load Time histograms in A/B tests
Adjust Page Load Time histograms in A/B tests

We're focusing on StartToFinish rather than StartToFinishDoc
for PLT tests.  I pulled out teh StartToFinishDoc histograms,
and added one more modulated histogram to look at ratios of
forward to back in various test scenarios.

I also removed the A/B tests for delayed binding.

r=willchan
Review URL: http://codereview.chromium.org/657006

git-svn-id: http://src.chromium.org/svn/trunk/src@39786 4ff67af0-8c30-449e-8e8b-ad334ec8d88c

Former-commit-id: ab61cc64c453df16789bab0a74c4ccacf2066f4c
meego-tablet-ux/meego-app-browser,meego-tablet-ux/meego-app-browser,meego-tablet-ux/meego-app-browser,meego-tablet-ux/meego-app-browser,meego-tablet-ux/meego-app-browser,meego-tablet-ux/meego-app-browser,meego-tablet-ux/meego-app-browser,meego-tablet-ux/meego-app-browser,meego-tablet-ux/meego-app-browser,meego-tablet-ux/meego-app-browser