fb: follow on seekbars new UI guideline for 4.4

google forgot some things.....seekbar is one example

Change-Id: I996062a978322c93694e360dff1e4f42dc589062

Conflicts:
	core/res/res/drawable-xxhdpi/scrubber_control_disabled_holo.png
	core/res/res/drawable-xxhdpi/scrubber_control_focused_holo.png
	core/res/res/drawable-xxhdpi/scrubber_control_normal_holo.png
	core/res/res/drawable-xxhdpi/scrubber_control_pressed_holo.png