Accessible scrollToMakeVisible should avoid scrolling if subfocus is visible.

Accessible scrollToMakeVisible should avoid scrolling if subfocus is visible.

The code already avoided scrolling if an object was already visible.
This extends that logic so that if the object is larger than the viewport,
it avoids scrolling if the subfocus is already visible.

BUG=374316, 424691
Committed: https://src.chromium.org/viewvc/blink?view=rev&revision=183932

[dmazzoni, 2014-10-17 21:35:26]

dmazzoni@chromium.org changed reviewers:
+ aboxhall@chromium.org

[dmazzoni, 2014-10-17 21:35:27]

Depends on: https://codereview.chromium.org/661183002/

Minor tweak to that change to make it a bit better.

[aboxhall, 2014-10-17 21:49:12]

lgtm

[dmazzoni, 2014-10-17 21:55:37]

The CQ bit was checked by dmazzoni@chromium.org

[commit-bot: I haz the power, 2014-10-17 21:56:00]

CQ is trying da patch. Follow status at
 https://chromium-cq-status.appspot.com/patch-status/657903004/40001

[commit-bot: I haz the power, 2014-10-17 23:16:52]

Committed patchset #3 (id:40001) as 183932