Add a dummy FlagSaver class.
authorMichael Lee <mzlee@fb.com>
Tue, 26 Jul 2016 22:43:00 +0000 (15:43 -0700)
committerFacebook Github Bot 5 <facebook-github-bot-5-bot@fb.com>
Tue, 26 Jul 2016 22:53:45 +0000 (15:53 -0700)
commitd150b5b77eadf39ab6aeef9c29d0c2a7e8180184
tree44d9e7a004d2c8e4969f336029e64ed12bb622aa
parent808e54f22311d5860c361a961f2eb72feede0729
Add a dummy FlagSaver class.

Summary: Add a declaration to mock out FlagSaver on platforms that don't support gflags.

Reviewed By: ivmaykov, yfeldblum

Differential Revision: D3620421

fbshipit-source-id: c1047f34f384f34276b18f53e966a65cdd5c8075
folly/portability/GFlags.h