Update html5gaming to use results.AddValue(...).

tools/perf/benchmarks/html5gaming.py

Index: tools/perf/benchmarks/html5gaming.py
diff --git a/tools/perf/benchmarks/html5gaming.py b/tools/perf/benchmarks/html5gaming.py
index 95d9bda2622171664d79819a242768e7a1d223d2..fe56634bd1f67b3de0233b45f19162ab931ab10b 100644
--- a/tools/perf/benchmarks/html5gaming.py
+++ b/tools/perf/benchmarks/html5gaming.py
@@ -15,6 +15,7 @@ import os
 from telemetry import benchmark
 from telemetry.page import page_measurement
 from telemetry.page import page_set
+from telemetry.value import scalar
 
 
 class _HTML5GamingMeasurement(page_measurement.PageMeasurement):
@@ -26,7 +27,9 @@ class _HTML5GamingMeasurement(page_measurement.PageMeasurement):
         'document.getElementById("score").innerHTML != "87485"', 200)
     result = int(tab.EvaluateJavaScript(
         'document.getElementById("score").innerHTML'))
-    results.Add('Score', 'score', result)
+    results.AddValue(
+        scalar.ScalarValue(results.current_page, 'Score', 'score', result))
+
 
 
 @benchmark.Disabled