Change overscroll functions to pass floats.

Change overscroll functions to pass floats.

The source values for these are floats, and the lone nontrivial consumer
(athena) wants floats.  So avoid truncating to int in the meantime.

BUG=81439
TEST=none

Committed: https://crrev.com/58e3dc6d40ebe536636c5e187a79babe3d04bd87
Cr-Commit-Position: refs/heads/master@{#299347}

[Peter Kasting, 2014-10-11 00:11:05]

pkasting@chromium.org changed reviewers:
+ avi@chromium.org, sky@chromium.org

[Peter Kasting, 2014-10-11 00:11:06]

sky: athena/, chrome/ OWNERS
avi: content/ OWNERS (will TBR if necessary, change is trivial)

https://codereview.chromium.org/645223003/diff/1/content/browser/web_contents...
File content/browser/web_contents/web_contents_view_aura.cc (right):

https://codereview.chromium.org/645223003/diff/1/content/browser/web_contents...
content/browser/web_contents/web_contents_view_aura.cc:916: -content_width :
content_width);
Technically, this change isn't part of the rest of this CL, but I didn't want to
bother with a separate CL for it.

[Avi (use Gerrit), 2014-10-11 03:07:54]

lgtm

boring

[sky, 2014-10-13 17:17:18]

LGTM

[Peter Kasting, 2014-10-13 18:00:37]

The CQ bit was checked by pkasting@chromium.org

[commit-bot: I haz the power, 2014-10-13 18:01:31]

CQ is trying da patch. Follow status at
 https://chromium-cq-status.appspot.com/patch-status/645223003/1

[commit-bot: I haz the power, 2014-10-13 19:49:05]

Committed patchset #1 (id:1)

[commit-bot: I haz the power, 2014-10-13 19:49:47]

Patchset 1 (id:??) landed as
https://crrev.com/58e3dc6d40ebe536636c5e187a79babe3d04bd87
Cr-Commit-Position: refs/heads/master@{#299347}