Revise welcome screen video and still image

Bug: 8159728
Change-Id: Ief8d7197879d24ccef529e975c23d6f11c7aa458
15 files changed
tree: 003ade0b2e5236787234920f26d84a81f41f72b2
  1. dictionaries/
  2. java/
  3. native/
  4. tests/
  5. tools/
  6. Android.mk
  7. CleanSpec.mk