Merge tag 'android-10.0.0_r9' of https://android.googlesource.com/platform//packages/apps/ThemePicker into HEAD

Android 10.0.0 Release 9 (QD1A.190821.011.C4)

Change-Id: Ia7b31d5e90c7353dc0ccf4cf135685cd51f04035
tree: 6c0e20ea43b0f77330c0d859bd6231de0315d276
  1. res/
  2. robolectric_tests/
  3. src/
  4. src_override/
  5. Android.mk
  6. AndroidManifest.xml