Add AppVerifier exception for debug build of coverage_unittests.
Add AppVerifier exception for debug build of coverage_unittests.

BUG=

Review URL: https://codereview.appspot.com/6528045

git-svn-id: db59699583a60be9a535cd09cdc9132301867226@1129 15e8cca8-e42c-11de-a347-f34a4f72eb7d

google/syzygy,supriyantomaftuh/syzygy,ericmckean/syzygy,ericmckean/syzygy,ericmckean/syzygy,supriyantomaftuh/syzygy,pombreda/syzygy,wangming28/syzygy,google/syzygy,sebmarchand/syzygy,wangming28/syzygy,sebmarchand/syzygy,pombreda/syzygy,wangming28/syzygy,sebmarchand/syzygy,pombreda/syzygy,sebmarchand/syzygy,sebmarchand/syzygy,pombreda/syzygy,ericmckean/syzygy,Eloston/syzygy,google/syzygy,wangming28/syzygy,supriyantomaftuh/syzygy,Eloston/syzygy,ericmckean/syzygy,pombreda/syzygy,supriyantomaftuh/syzygy,google/syzygy