commit c2cbc7df84951541b29200c3a6ade3163fb815ae
author Fengwei Yin <fengwei.yin@intel.com> Thu May 24 16:47:48 2012 +0800
committer Shuo Gao <shuo.gao@intel.com> Wed Aug 15 10:40:58 2012 +0800
tree 5caa522ea6cc15a144382cf80455b8fa8e1f105b
parent 1c684ed1b5ac92ae473db5718627405367eb1766

back port upstream patch

This patch is from Chromium project. It's used to handle potential issue
in scoped_refptr.

This is upstream patch porting and the original link is:
http://codereview.chromium.org/9021020/
unittest change was not included.

Change-Id: I14ce3df0653ff29713f38eceaf07e9b409cfaedc
Author: Fengwei Yin <fengwei.yin@intel.com>
Singed-off-by: Shuo Gao <shuo.gao@intel.com>
Signed-off-by: Bruce Beare <bruce.j.beare@intel.com>
Signed-off-by: Jack Ren <jack.ren@intel.com>
Author-tracking-BZ: 37500