Refactor Telemetry value system to support AsDict()

tools/telemetry/telemetry/value/list_of_scalar_values.py

Index: tools/telemetry/telemetry/value/list_of_scalar_values.py
diff --git a/tools/telemetry/telemetry/value/list_of_scalar_values.py b/tools/telemetry/telemetry/value/list_of_scalar_values.py
index cb70be8c89b50e2f9406ba0b43a0f53725ef897b..210ca3255f7ae201d6968ec5ca3f582b6eab46d8 100644
--- a/tools/telemetry/telemetry/value/list_of_scalar_values.py
+++ b/tools/telemetry/telemetry/value/list_of_scalar_values.py
@@ -56,6 +56,15 @@ class ListOfScalarValues(value_module.Value):
             self.same_page_merge_policy == that.same_page_merge_policy)
 
   @classmethod
+  def GetJSONTypeName(cls):
+    return 'list_of_scalar_values'
+
+  def AsDict(self):
+    d = super(ListOfScalarValues, self).AsDict()
+    d['values'] = self.values
+    return d
+
+  @classmethod
   def MergeLikeValuesFromSamePage(cls, values):
     assert len(values) > 0
     v0 = values[0]