Implement debugging local unlock keys in chrome://proximity-auth.

components/proximity_auth/connection.h

Index: components/proximity_auth/connection.h
diff --git a/components/proximity_auth/connection.h b/components/proximity_auth/connection.h
index 48d3b16cf6b32e2f51e0e4ebf1d4c8778593f6a7..cbaf3a51f5329b18c19fe619f3370f2e1dd7156a 100644
--- a/components/proximity_auth/connection.h
+++ b/components/proximity_auth/connection.h
@@ -54,14 +54,14 @@ class Connection {
   // Disconnects from the remote device.
   virtual void Disconnect() = 0;
 
+  Status status() const { return status_; }
+
  protected:
   // Sets the connection's status to |status|. If this is different from the
   // previous status, notifies observers of the change in status.
   // Virtual for testing.
   virtual void SetStatus(Status status);
 
-  Status status() const { return status_; }
-
   // Called after attempting to send bytes over the connection, whether the
   // message was successfully sent or not.
   // Virtual for testing.