Mandate unique_ptr for base::IDMap in IDMapOwnPointer mode.

components/drive/job_scheduler.cc

Index: components/drive/job_scheduler.cc
diff --git a/components/drive/job_scheduler.cc b/components/drive/job_scheduler.cc
index a6568d9aa934ce348aaeeae7842a4839eb11e9a4..a7012f668ec8d5840e3aaeca9eb31d0127553053 100644
--- a/components/drive/job_scheduler.cc
+++ b/components/drive/job_scheduler.cc
@@ -721,8 +721,10 @@ void JobScheduler::AddPermission(
 }
 
 JobScheduler::JobEntry* JobScheduler::CreateNewJob(JobType type) {
-  JobEntry* job = new JobEntry(type);
-  job->job_info.job_id = job_map_.Add(job);  // Takes the ownership of |job|.
+  int32_t job_key = job_map_.Add(
+      base::MakeUnique<JobEntry>(type));
+  JobEntry* job = job_map_.Lookup(job_key);

[danakj, 2016/11/18 00:15:32]

You don't need to do Lookup, you can just get a pointer from the unique_ptr
before u hand it to Add()

+  job->job_info.job_id = job_key;
   return job;
 }