Previously, we would not record user actions in UMA when an OTR
(Incognito) window was active. However, since user actions don't
contain any PII it was just causing a confusing discrepancy in
counts when compared to histograms. This CL makes them consistent
by making user actions be logged regardless of the OTR state.

BUG=604001
TBR=sgurun@chromium.org, wez@chromium.org, rohitrao@chromium.org

Review-Url: https://codereview.chromium.org/2383533002
Cr-Commit-Position: refs/heads/master@{#422133}