Merging ub-launcher3-master, build 5391211

Test: Manual

Bug: 124454263
Bug: 124796742
Bug: 126417894
Bug: 126738409
Bug: 126744145
Bug: 126791704
Bug: 126803091
Bug: 126814811
Bug: 126897804
Bug: 128623100

Change-Id: I1d65e74e6834df6877a9b3a833c97b1c0a290bb4
tree: 18ba6be2652c5476ffce153f3cfd5d47ab9f9d3f
  1. res/
  2. robolectric_tests/
  3. src/
  4. src_override/
  5. Android.mk
  6. AndroidManifest.xml