AI 143320: am: CL 143171 am: CL 142873 fix [1732012] Only show screen rotation...

AI 143320: am: CL 143171 am: CL 142873 fix [1732012] Only show screen rotation animation when triggered by sensor
  Original author: mathias
  Merged from: //branches/cupcake/...
  Original author: android-build
  Merged from: //branches/donutburger/...

Automated import of CL 143320