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

tools/perf/benchmarks/canvasmark.py

Index: tools/perf/benchmarks/canvasmark.py
diff --git a/tools/perf/benchmarks/canvasmark.py b/tools/perf/benchmarks/canvasmark.py
index 911f76223f59e1762fcc64d6c23aa7cd3b00958a..27912196498bff54312cf13f13acfc4c76b7d10f 100644
--- a/tools/perf/benchmarks/canvasmark.py
+++ b/tools/perf/benchmarks/canvasmark.py
@@ -14,6 +14,7 @@ import os
 from telemetry import benchmark
 from telemetry.page import page_measurement
 from telemetry.page import page_set
+from telemetry.value import scalar
 
 
 class _CanvasMarkMeasurement(page_measurement.PageMeasurement):
@@ -40,10 +41,12 @@ class _CanvasMarkMeasurement(page_measurement.PageMeasurement):
         'Unexpected result format "%s"' % score_and_name
       score = int(score_and_name[0])
       name = score_and_name[1][:-1]
-      results.Add(name, 'score', score, data_type='unimportant')
+      results.AddValue(scalar.ScalarValue(
+          results.current_page, name, 'score', score, important=False))
       # Aggregate total score for all tests.
       total += score
-    results.Add('Score', 'score', total)
+    results.AddValue(scalar.ScalarValue(
+        results.current_page, 'Score', 'score', total))
 
 
 @benchmark.Disabled