Instrument profile DLL to fix coverage regression.
Instrument profile DLL to fix coverage regression.

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

Review URL: http://codereview.appspot.com/5498050

git-svn-id: db59699583a60be9a535cd09cdc9132301867226@579 15e8cca8-e42c-11de-a347-f34a4f72eb7d

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