Cancel uninstall if the uninstall dialog's parent window is destroyed

chrome/browser/extensions/extension_uninstall_dialog.h

Index: chrome/browser/extensions/extension_uninstall_dialog.h
diff --git a/chrome/browser/extensions/extension_uninstall_dialog.h b/chrome/browser/extensions/extension_uninstall_dialog.h
index 33e6c3b1069f2a3521039ff4032acd090fb093bc..85e9811e17704d8f0cea3e95bfcab3a0b7434248 100644
--- a/chrome/browser/extensions/extension_uninstall_dialog.h
+++ b/chrome/browser/extensions/extension_uninstall_dialog.h
@@ -63,17 +63,11 @@ class ExtensionUninstallDialog
 
  protected:
   // Constructor used by the derived classes.
-  ExtensionUninstallDialog(Profile* profile,
-                           gfx::NativeWindow parent,
-                           Delegate* delegate);
+  ExtensionUninstallDialog(Profile* profile, Delegate* delegate);
 
   // TODO(sashab): Remove protected members: crbug.com/397395
   Profile* const profile_;
 
-  // TODO(sashab): Investigate lifetime issue of this window variable:
-  // crbug.com/397396
-  gfx::NativeWindow parent_;
-
   // The delegate we will call Accepted/Canceled on after confirmation dialog.
   Delegate* delegate_;