Framework: Fine SeekBar control

Allow user to move their finger in the Y direction
	to change the speed at which the seekbar will seek
	on moving their finger across the X direction

PS2: increase time constraints by a bit
PS3: decrease distance constraints, lol

Change-Id: I1fc8db16820fd3615436ee0be6ce0bf4394c0808
[1/2] fb: Change density on the fly

Change-Id: I7ee16d32ee882fea22367f49f69f4da744f3aa45

Conflicts:
	core/java/android/view/WindowManagerPolicy.java
	policy/src/com/android/internal/policy/impl/PhoneWindowManager.java