Cast the return value of HeapFree to a boolean before checking it.
Cast the return value of HeapFree to a boolean before checking it.

BUG=https://code.google.com/p/sawbuck/issues/detail?id=89
R=chrisha@chromium.org, siggi@chromium.org

Review URL: https://codereview.appspot.com/80470045

git-svn-id: db59699583a60be9a535cd09cdc9132301867226@2094 15e8cca8-e42c-11de-a347-f34a4f72eb7d

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