[polymer] Fix the input latency side panel test

tracing/tracing/ui/extras/side_panel/input_latency_side_panel.html

Index: tracing/tracing/ui/extras/side_panel/input_latency_side_panel.html
diff --git a/tracing/tracing/ui/extras/side_panel/input_latency_side_panel.html b/tracing/tracing/ui/extras/side_panel/input_latency_side_panel.html
index 085050db936c08ae3ea2f64a40b68424a7c3ba6c..049acac670f906b23549f711097d8c698d96c33b 100644
--- a/tracing/tracing/ui/extras/side_panel/input_latency_side_panel.html
+++ b/tracing/tracing/ui/extras/side_panel/input_latency_side_panel.html
@@ -192,6 +192,14 @@ Polymer({
         labels));
   },
 
+  // TODO(charliea): Delete this function in favor of rangeOfInterest.
+  get currentRangeOfInterest() {
+    if (this.rangeOfInterest_.isEmpty)
+      return this.model_.bounds;
+    else
+      return this.rangeOfInterest_;
+  },
+
   createLatencyLineChart: function(data, title) {
     var chart = new tr.ui.b.LineChart();
     var width = 600;
@@ -212,7 +220,7 @@ Polymer({
     if (this.modelHelper_ === undefined)
       return;
 
-    var rangeOfInterest = this.rangeOfInterest;
+    var rangeOfInterest = this.currentRangeOfInterest;
 
     var chromeProcess;
     if (this.modelHelper_.rendererHelpers[this.selectedProcessId_])