Fix cpplint warnings

atom/browser/atom_permission_manager.cc

@@ -4,6 +4,8 @@
 
 #include "atom/browser/atom_permission_manager.h"
 
+#include <vector>
+
 #include "content/public/browser/child_process_security_policy.h"
 #include "content/public/browser/permission_type.h"
 #include "content/public/browser/render_frame_host.h"

atom/browser/atom_permission_manager.h

@@ -6,6 +6,7 @@
 #define ATOM_BROWSER_ATOM_PERMISSION_MANAGER_H_
 
 #include <map>
+#include <vector>
 
 #include "base/callback.h"
 #include "content/public/browser/permission_manager.h"