Add styleable attribute for dialpad ripple touch tints.

- Add an attribute, which can be set in Dialer/InCall.
- Read this attribute in DialpadView, and if defined set this on the
ripple drawable which is applied to the dialpad key button. We aren't
able to instantiate a new instance of RippleDrawable right now, so
this is the slightly roundabout way of accomplishing this. This
drawable is then set as the background of the dialpad key buttons.

Bug: 15168708
Change-Id: I64d6e0957c0167827c6a6124a4855d46feb87452
3 files changed
tree: 6fe946d82826d3733c889be8c14da983fc6a4408
  1. res-common/
  2. src/
  3. tests/