tree 4e850385254a1d9b6b46d77f1c765e4af17a5580
parent da5a272db4cfda280919969401dd05de729b851b
parent 02c72bc57007857f72af5c236ed1b15468519a7c
author Scott Main <smain@google.com> 1474244918 +0000
committer android-build-merger <android-build-merger@google.com> 1474244918 +0000

Revert "Revert "add dev guide for constraint layout.""
am: 02c72bc570

Change-Id: I13678310f2d3e649fe29bb743961de29504a9fb4