Commit e384bb2e authored by Alex Deymo's avatar Alex Deymo
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Subprocess: Close all unused file descriptors. 

This patch extends Subprocess::ExecFlags() method with a list of
file descriptors that should be kept open on the child process and
mapped to a pipe() in the parent. The remaining file descriptors
will be closed.

Bug: 27880754
TEST=Added unittests for this functionality.

Change-Id: Id96fb6a72f7805a0bfacfbc85422dc7d44750d93
parent b9d4a677
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