Bug 848247 - [Toolbar] button in toolbar shifts to right once when press...

https://bugzilla.mozilla.org/show_bug.cgi?id=848247

1. Title : [Toolbar] button in toolbar shifts to right once when pressed
2. Precondition : Go to a page where it has a toolbar with a button, such as 'Edit Contact', , 'Contacts->Settings' page, 'Wifi Setup' page on FTU, etc.
3. Tester's Action : Press and hold the button on toolbar, 'Update', 'Done' or 'Refresh'.
4. Detailed Symptom (ENG.) : The button shifts to right a little once on touch. It only moves once.
5. Expected : The button shouldn't move.
6.Reproducibility: Y
1)Frequency Rate : 100%
7.Build: AU_LINUX_GECKO_ICS_STRAWBERRY_V1.01.00.01.19.018, Mozilla build ID: 20130219070201