Index: tracing/tracing/ui/base/line_chart_test.html |
diff --git a/tracing/tracing/ui/base/line_chart_test.html b/tracing/tracing/ui/base/line_chart_test.html |
index 5a6cc13b754375687e5c0a0ce7b5fc1025e70672..eee61c646f8f219c487d10b88808cb9ff208285b 100644 |
--- a/tracing/tracing/ui/base/line_chart_test.html |
+++ b/tracing/tracing/ui/base/line_chart_test.html |
@@ -148,7 +148,7 @@ tr.b.unittest.testSuite(function() { |
updateBrushedRange(); |
}); |
chart.addEventListener('item-mousemove', function(e) { |
- if (e.button == undefined) |
+ if (e.button === undefined) |
return; |
curMouseIndex = e.index; |
updateBrushedRange(); |