Bug 1021479 - [VsD Refresh] Lockscreen Visual Refresh: Slider arrow size
Merge pull request #20115 from mnjul/bug_1021479_lockscreen_visual_arrow_size

Bug 1021479 - [VsD Refresh] Lockscreen Visual Refresh: Slider arrow size; r=gweng
Merged even though Travis didn't pass; the failing Marionette tests were expected to fail, see https://groups.google.com/forum/#!topic/mozilla.dev.gaia/JQeF6PrVlrw