Merging ub-launcher3-qt-dev, build 5456233

Test: Manual

Bug: 126238021 n Bug: 128923737 n Bug: 129365634 n Bug: 129410887 n Bug: 129846060 n
Change-Id: If40a08cc8202703f4f8b57728310060817153a92
tree: 323e4ed591604d01e6a0225d0b1b8026ac910817
  1. res/
  2. robolectric_tests/
  3. src/
  4. src_override/
  5. Android.mk
  6. AndroidManifest.xml