Seigo Nonaka 2342e5310f Fix lock assertion failures in unit test.
The assertion for the lock state has now activated by
I9c4b1e1f09c6793e387fbdb8bb654cc0a13c65d5.
This CL fixes the assertion failure in the unit tests by acquiring
lock before calling the functions.

Change-Id: I6a6afefb4de01e8610c2abfe6c779afa9442cc67
2016-01-06 22:49:33 +09:00
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