RefCounted types should not have public destructors, chrome/browser/ part 6

chrome/browser/external_protocol/external_protocol_handler_unittest.cc

Index: chrome/browser/external_protocol/external_protocol_handler_unittest.cc
diff --git a/chrome/browser/external_protocol/external_protocol_handler_unittest.cc b/chrome/browser/external_protocol/external_protocol_handler_unittest.cc
index 14ced2ff7f4d863959910ced7d053098344893b8..389b64d8044f1f819f50966f03a35e9aa5d53985 100644
--- a/chrome/browser/external_protocol/external_protocol_handler_unittest.cc
+++ b/chrome/browser/external_protocol/external_protocol_handler_unittest.cc
@@ -21,6 +21,8 @@ class FakeExternalProtocolHandlerWorker
         os_state_(os_state) {}
 
  private:
+  virtual ~FakeExternalProtocolHandlerWorker() {}
+
   virtual ShellIntegration::DefaultWebClientState CheckIsDefault() {
     return os_state_;
   }