Convert printing code to use base::TimeDelta in PostDelayedTask interfaces.

chrome/browser/printing/print_job_manager.cc

Index: chrome/browser/printing/print_job_manager.cc
diff --git a/chrome/browser/printing/print_job_manager.cc b/chrome/browser/printing/print_job_manager.cc
index 8d0334f1d841d2f9d145654b121d7c256b8347e2..e83238c40449d26c73e6c3519ece25e1c152772e 100644
--- a/chrome/browser/printing/print_job_manager.cc
+++ b/chrome/browser/printing/print_job_manager.cc
@@ -50,9 +50,9 @@ void PrintJobManager::StopJobs(bool wait_for_finish) {
       PrintJob* job = current_jobs[i];
       if (!job)
         continue;
-      // Wait for 120 seconds for the print job to be spooled.
+      // Wait for two minutes for the print job to be spooled.
       if (wait_for_finish)
-        job->FlushJob(120000);
+        job->FlushJob(base::TimeDelta::FromMinutes(2));
       job->Stop();
     }
   }