am d345c6ac: am 0a42b811: base: process: Abort setting the process group if one of the threads fails to switch

Merge commit 'd345c6acedb22c9408553ef9f38c196984177e6b' into eclair-mr2-plus-aosp

* commit 'd345c6acedb22c9408553ef9f38c196984177e6b':
  base: process: Abort setting the process group if one of the threads fails to switch