Don't drop the floating point part of events when converting types.

Don't drop the floating point part of events when converting types.

A few places that make an event out of another event use the location()
instead of the location_f() which means they drop the floating point
part of the original event.

R=sadrul, sky
BUG=342848
Committed: https://crrev.com/05558ce51d776aee1b12104a2d6aba7971b77442
Cr-Commit-Position: refs/heads/master@{#355682}

[sky, 2015-10-22 23:10:09]

LGTM

[sadrul, 2015-10-22 23:10:31]

lgtm

[danakj, 2015-10-22 23:26:46]

The CQ bit was checked by danakj@chromium.org

[commit-bot: I haz the power, 2015-10-22 23:27:24]

CQ is trying da patch. Follow status at
 https://chromium-cq-status.appspot.com/patch-status/1423703002/1
View timeline at
 https://chromium-cq-status.appspot.com/patch-timeline/1423703002/1

[commit-bot: I haz the power, 2015-10-23 00:04:43]

Committed patchset #1 (id:1)

[commit-bot: I haz the power, 2015-10-23 00:05:39]

Patchset 1 (id:??) landed as
https://crrev.com/05558ce51d776aee1b12104a2d6aba7971b77442
Cr-Commit-Position: refs/heads/master@{#355682}