Fix Views overlay scrollbar border stroke.

Fix Views overlay scrollbar border stroke.

Using a square end cap instead of "butt" makes the stroke extend by a
half stroke width (0.5dp or 1px @2x) at the ends.

BUG=702744
Review-Url: https://codereview.chromium.org/2766773002
Cr-Commit-Position: refs/heads/master@{#458493}
Committed: https://chromium.googlesource.com/chromium/src/+/c6359868104299cc1eb5fe2700a792d52ecaac6c

[Evan Stade, 2017-03-21 15:56:58]

estade@chromium.org changed reviewers:
+ sadrul@chromium.org

[sadrul, 2017-03-21 17:22:10]

lgtm

[Evan Stade, 2017-03-21 17:31:27]

The CQ bit was checked by estade@chromium.org

[commit-bot: I haz the power, 2017-03-21 17:33:07]

CQ is trying da patch. Follow status at
 
https://chromium-cq-status.appspot.com/v2/patch-status/codereview.chromium.or...

[commit-bot: I haz the power, 2017-03-21 18:53:37]

CQ is committing da patch.

Bot data: {"patchset_id": 1, "attempt_start_ts": 1490117487061370, "parent_rev":
"0d57cf0fbb763f3e7b8cea4ffdea4213bd0c27c6", "commit_rev":
"c6359868104299cc1eb5fe2700a792d52ecaac6c"}

[commit-bot: I haz the power, 2017-03-21 18:54:25]

Description was changed from

==========
Fix Views overlay scrollbar border stroke.

Using a square end cap instead of "butt" makes the stroke extend by a
half stroke width (0.5dp or 1px @2x) at the ends.

BUG=702744
==========

to

==========
Fix Views overlay scrollbar border stroke.

Using a square end cap instead of "butt" makes the stroke extend by a
half stroke width (0.5dp or 1px @2x) at the ends.

BUG=702744

Review-Url: https://codereview.chromium.org/2766773002
Cr-Commit-Position: refs/heads/master@{#458493}
Committed:
https://chromium.googlesource.com/chromium/src/+/c6359868104299cc1eb5fe2700a7...
==========

[commit-bot: I haz the power, 2017-03-21 18:54:26]

Committed patchset #1 (id:1) as
https://chromium.googlesource.com/chromium/src/+/c6359868104299cc1eb5fe2700a7...