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Merge "Allow reregistering callback"
authorTreeHugger Robot <treehugger-gerrit@google.com>
Fri, 24 Feb 2017 20:21:24 +0000 (20:21 +0000)
committerAndroid (Google) Code Review <android-gerrit@google.com>
Fri, 24 Feb 2017 20:21:24 +0000 (20:21 +0000)

Trivial merge