Merge QP1A.190122.001

Change-Id: Id7acb995b193336503138453d08004d58655611f
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+# Default owners are top 3 or more active developers of the past 1 or 2 years
+# or people with more than 10 commits last year.
+# Please update this list if you find better owner candidates.
+nanzhang@google.com