Round near zero value in rotation matrix to zero
 This seems to be the root cause of computation errors.

BUG=222483,223983
TEST=covered by test

Review URL: https://chromiumcodereview.appspot.com/14142011

git-svn-id: svn://svn.chromium.org/chrome/trunk/src@194007 0039d316-1c4b-4281-b951-d872f2087c98
2 files changed