DocumentUI: Plish the design of footer bottons.

* Remove the directory name from "pick" button.
* Allign buttons at right.
* Fix bug that the pick button turns to be hidden after screen rotation.

BUG=20285152
Change-Id: I909d52f341bf67c5627431a354a9b0ccec152a05
4 files changed
tree: 59933761859cd59d1caffb5584e90bd2d71cdbe6
  1. res/
  2. src/
  3. tests/
  4. Android.mk
  5. AndroidManifest.xml
  6. wrap_alpha.py