Changed default assistant picker to verify if can intent to an activity.

Updated assistant picker to use startActivityForResult intead of
startActivity because Google Assistant requires this.

Bug: 145236084
Test: Manual, robolectric
Change-Id: Id1b0e5d270ac5cedc380edeb9bfefbff566b06d3
2 files changed
tree: 177b526325f405f78fd341bc5ee64ee6745669d0
  1. res/
  2. src/
  3. tests/
  4. Android.mk
  5. AndroidManifest.xml
  6. PREUPLOAD.cfg