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

tools/perf/benchmarks/peacekeeper.py

Index: tools/perf/benchmarks/peacekeeper.py
diff --git a/tools/perf/benchmarks/peacekeeper.py b/tools/perf/benchmarks/peacekeeper.py
index 45d9cfbd1de7aa8e66e3fff50502cdbbef98242f..03144ba52d9b83c02c9c5f1f48112a1746ed7606 100644
--- a/tools/perf/benchmarks/peacekeeper.py
+++ b/tools/perf/benchmarks/peacekeeper.py
@@ -21,6 +21,7 @@ from telemetry.util import statistics
 from telemetry.value import merge_values
 from telemetry.value import scalar
 
+
 class _PeaceKeeperMeasurement(page_measurement.PageMeasurement):
 
   def WillNavigateToPage(self, page, tab):
@@ -54,8 +55,9 @@ class _PeaceKeeperMeasurement(page_measurement.PageMeasurement):
     tab.WaitForJavaScriptExpression('_done', 600)
     result = tab.EvaluateJavaScript('__results')
 
-    results.Add('Score', 'score', int(result['score']), result['test'],
-                'unimportant')
+    results.AddValue(scalar.ScalarValue(
+        results.current_page, '%s.Score' % result['test'], 'score',
+        int(result['score'])), important=False)
 
   def DidRunTest(self, browser, results):
     # Calculate geometric mean as the total for the combined tests.