Wait for the program launched in the snapshot instead of exiting immediately.
Wait for the program launched in the snapshot instead of exiting immediately.

R=chrisha@chromium.org,rogerm@chromium.org

Review URL: http://codereview.appspot.com/5477070

git-svn-id: db59699583a60be9a535cd09cdc9132301867226@570 15e8cca8-e42c-11de-a347-f34a4f72eb7d

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