Fix build for both old and uapi kernel headers.

Bug: 11559337
Change-Id: Iba1a3aa97ed39a9e45b64cb37c26682ad292f7c4
Merge "Fix build for both old and uapi kernel headers."
am e5d75b22: Merge "Fix build for both old and uapi kernel headers."

* commit 'e5d75b22836482fd05bdf3ee5839cd666248f48c':
  Fix build for both old and uapi kernel headers.
Merge commit '157d428913c3d738be481f12e8cbf9267b3b2862' into HEAD
Merge commit '1281018ea4be347c5b5480015e9b8f8e0069268e' into HEAD
Hide all warnings from this project

Turn on warning as error to detect new warnings.

Change-Id: Id20a927c0f47208efb0b841e72de4bdd0d09323c
Merge "Hide all warnings from this project"
Use bionic's setns(2).

Change-Id: Iee7479c91128ce635cf81b38c5696891e2db295d
Merge "Use bionic's setns(2)."