Custom Theme 10/n: check for existing theme

If the currently defined custom theme is equivalent to an
existing one, suggest using that one instead of creating a
new custom one.

Bug: 124796742
Change-Id: Ib8436d129f359a53f284f907a566dd16293df6ef
6 files changed
tree: cae03b5894146b0d331f15df6df596331d8ecc2a
  1. res/
  2. robolectric_tests/
  3. src/
  4. src_override/
  5. Android.mk
  6. AndroidManifest.xml