Add severity info to drive::EventLogger.

chrome/browser/chromeos/drive/job_scheduler.cc

Index: chrome/browser/chromeos/drive/job_scheduler.cc
diff --git a/chrome/browser/chromeos/drive/job_scheduler.cc b/chrome/browser/chromeos/drive/job_scheduler.cc
index 5ea3bd2b274e0dd473c5d18884d60f3e51765eae..0903173b5de432c5ef3d47b3f4c01d4dac302774 100644
--- a/chrome/browser/chromeos/drive/job_scheduler.cc
+++ b/chrome/browser/chromeos/drive/job_scheduler.cc
@@ -692,7 +692,9 @@ void JobScheduler::QueueJob(JobID job_id) {
   QueueType queue_type = GetJobQueueType(job_info.job_type);
   queue_[queue_type]->Push(job_id, job_entry->context.type);
 
-  util::Log("Job queued: %s - %s", job_info.ToString().c_str(),
+  util::Log(logging::LOG_INFO,
+            "Job queued: %s - %s",
+            job_info.ToString().c_str(),
             GetQueueInfo(queue_type).c_str());
 }
 
@@ -727,7 +729,8 @@ void JobScheduler::DoJobLoop(QueueType queue_type) {
 
   entry->cancel_callback = entry->task.Run();
 
-  util::Log("Job started: %s - %s",
+  util::Log(logging::LOG_INFO,
+            "Job started: %s - %s",
             job_info->ToString().c_str(),
             GetQueueInfo(queue_type).c_str());
 }
@@ -805,7 +808,9 @@ bool JobScheduler::OnJobDone(JobID job_id, google_apis::GDataErrorCode error) {
   queue_[queue_type]->MarkFinished(job_id);
 
   const base::TimeDelta elapsed = base::Time::Now() - job_info->start_time;
-  util::Log("Job done: %s => %s (elapsed time: %sms) - %s",
+  bool success = (GDataToFileError(error) == FILE_ERROR_OK);
+  util::Log(success ? logging::LOG_INFO : logging::LOG_WARNING,
+            "Job done: %s => %s (elapsed time: %sms) - %s",
             job_info->ToString().c_str(),
             GDataErrorCodeToString(error).c_str(),
             base::Int64ToString(elapsed.InMilliseconds()).c_str(),
@@ -1014,7 +1019,8 @@ void JobScheduler::AbortNotRunningJob(JobEntry* job,
 
   const base::TimeDelta elapsed = base::Time::Now() - job->job_info.start_time;
   const QueueType queue_type = GetJobQueueType(job->job_info.job_type);
-  util::Log("Job aborted: %s => %s (elapsed time: %sms) - %s",
+  util::Log(logging::LOG_INFO,
+            "Job aborted: %s => %s (elapsed time: %sms) - %s",
             job->job_info.ToString().c_str(),
             GDataErrorCodeToString(error).c_str(),
             base::Int64ToString(elapsed.InMilliseconds()).c_str(),