Refactor Telemetry value system to support AsDict()

tools/telemetry/telemetry/value/list_of_scalar_values_unittest.py

Index: tools/telemetry/telemetry/value/list_of_scalar_values_unittest.py
diff --git a/tools/telemetry/telemetry/value/list_of_scalar_values_unittest.py b/tools/telemetry/telemetry/value/list_of_scalar_values_unittest.py
index 88f42e64115ff35735ac1e8256d4ac646dde53e3..b27398e9cdcc771d36e66f9128aee89944ce2061 100644
--- a/tools/telemetry/telemetry/value/list_of_scalar_values_unittest.py
+++ b/tools/telemetry/telemetry/value/list_of_scalar_values_unittest.py
@@ -76,3 +76,13 @@ class ValueTest(TestBase):
     self.assertEquals(value.PICK_FIRST, vM.same_page_merge_policy)
     self.assertEquals(True, vM.important)
     self.assertEquals([1, 2, 3, 4], vM.values)
+
+  def testAsDictIsAccurate(self):
+    v = list_of_scalar_values.ListOfScalarValues(
+        None, 'x', 'unit', [1, 2],
+        same_page_merge_policy=value.PICK_FIRST, important=False)
+    d = v.AsDictWithoutBaseClassEntries()
+
+    self.assertEquals(d, {
+          'values': [1, 2]
+        })