Bind ContentVerifer::VerifyFailed as OnceCallback.

extensions/browser/content_verify_job.h

Index: extensions/browser/content_verify_job.h
diff --git a/extensions/browser/content_verify_job.h b/extensions/browser/content_verify_job.h
index cb7b7e0a8f82fdb898382aa241447543208a42e2..9b72f807a85b68b2aa2be395101962d94c7413b8 100644
--- a/extensions/browser/content_verify_job.h
+++ b/extensions/browser/content_verify_job.h
@@ -49,11 +49,11 @@ class ContentVerifyJob : public base::RefCountedThreadSafe<ContentVerifyJob> {
 
     FAILURE_REASON_MAX
   };
-  typedef base::Callback<void(FailureReason)> FailureCallback;
+  using FailureCallback = base::OnceCallback<void(FailureReason)>;
 
   // The |failure_callback| will be called at most once if there was a failure.
   ContentVerifyJob(ContentHashReader* hash_reader,
-                   const FailureCallback& failure_callback);
+                   FailureCallback failure_callback);
 
   // This begins the process of getting expected hashes, so it should be called
   // as early as possible.