Fix a bug in the pause after download change that was recently committed, trying to terminate a paused worker would hang.
Fix a bug in the pause after download change that was recently committed, trying to terminate a paused worker would hang.

TBR=jochen
BUG=371671

Review URL: https://codereview.chromium.org/337223004

git-svn-id: bf5cd6ccde378db821296732a091cfbcf5285fbd@176948 bbb929c8-8fbe-4397-9dbb-9b2b20218538

primiano/blink-gitcs,primiano/blink-gitcs,primiano/blink-gitcs,primiano/blink-gitcs,primiano/blink-gitcs,primiano/blink-gitcs,primiano/blink-gitcs,primiano/blink-gitcs,primiano/blink-gitcs