Migrate from Polymer fire to Gerrit.FireBehavior
Polymer 2 deprecates the 'fire' method for legacy elements.
So let's use gerrit's core fire method which is almost exactly the same.
Change-Id: I59aebd29a89d26d9cb39e63e9a41afa9756b942f
diff --git a/polygerrit-ui/app/elements/diff/gr-diff/gr-diff.html b/polygerrit-ui/app/elements/diff/gr-diff/gr-diff.html
index 06f8a4f..4c96732 100644
--- a/polygerrit-ui/app/elements/diff/gr-diff/gr-diff.html
+++ b/polygerrit-ui/app/elements/diff/gr-diff/gr-diff.html
@@ -16,6 +16,7 @@
-->
<link rel="import" href="/bower_components/polymer/polymer.html">
+<link rel="import" href="../../../behaviors/fire-behavior/fire-behavior.html">
<link rel="import" href="../../../behaviors/gr-patch-set-behavior/gr-patch-set-behavior.html">
<link rel="import" href="../../../styles/shared-styles.html">
<link rel="import" href="../../shared/gr-button/gr-button.html">
