Fix leak when jobs complete

The JobQueue wasn't deleting the jobs after they finished.

TBR=kinuko@chromium.org
BUG=

Review URL: https://codereview.chromium.org/132823002

git-svn-id: svn://svn.chromium.org/chrome/trunk/src@244016 0039d316-1c4b-4281-b951-d872f2087c98

content/browser/service_worker/service_worker_job_coordinator.cc

@@ -32,6 +32,7 @@ void ServiceWorkerJobCoordinator::JobQueue::Push(
 void ServiceWorkerJobCoordinator::JobQueue::Pop(ServiceWorkerRegisterJob* job) {
   DCHECK(job == jobs_.front());
   jobs_.pop_front();
+  delete job;
   if (!jobs_.empty())
     jobs_.front()->Start();
 }