RefCounted types should not have public destructors, chrome/browser/ui

chrome/browser/ui/cocoa/first_run_dialog.mm

Index: chrome/browser/ui/cocoa/first_run_dialog.mm
diff --git a/chrome/browser/ui/cocoa/first_run_dialog.mm b/chrome/browser/ui/cocoa/first_run_dialog.mm
index d061b425ee825bb6546f65fa7f4ac3485d72e158..8b9a66bdedff4189e631896dc5d03d58736420c5 100644
--- a/chrome/browser/ui/cocoa/first_run_dialog.mm
+++ b/chrome/browser/ui/cocoa/first_run_dialog.mm
@@ -57,7 +57,12 @@ class FirstRunShowBridge : public base::RefCounted<FirstRunShowBridge> {
   FirstRunShowBridge(FirstRunDialogController* controller);
 
   void ShowDialog();
+
  private:
+  friend class base::RefCounted<FirstRunShowBridge>;
+
+  ~FirstRunShowBridge();
+
   FirstRunDialogController* controller_;
 };
 
@@ -65,6 +70,8 @@ FirstRunShowBridge::FirstRunShowBridge(
     FirstRunDialogController* controller) : controller_(controller) {
 }
 
+FirstRunShowBridge::~FirstRunShowBridge() {}
+
 void FirstRunShowBridge::ShowDialog() {
   [controller_ show];
   MessageLoop::current()->QuitNow();