Update login code to use theme/resolution aware Google logo

Note that there are still some images/icons that should be
migrated to the new GoogleLoginIcons class. I can do that
in a new CL once this one goes through.

Bug: 17960252

Change-Id: Iaa28d74edf8d97c5ba78da5d068429abf5eb201d
6 files changed
tree: 9959d5a5d24d5fadb00ba0812c3e2cc49e2161e2
  1. lib/
  2. resources/
  3. src/
  4. testSrc/
  5. google-login.iml