Add Chart JSON processing to Telemetry.

tools/telemetry/telemetry/value/value_unittest.py

 # Copyright 2014 The Chromium Authors. All rights reserved.
 # Use of this source code is governed by a BSD-style license that can be
 # found in the LICENSE file.
 import os
 import unittest
 
 from telemetry import value
 from telemetry.page import page_set
 
 
@@ skipping 17 matching lines @@
   def MergeLikeValuesFromDifferentPages(cls, values,
                                         group_by_name_suffix=False):
     pass
 
   def GetBuildbotDataType(self, output_context):
     pass
 
   def GetBuildbotValue(self):
     pass
 
-  def GetBuildbotMeasurementAndTraceNameForComputedSummaryResult(
+  def GetChartAndTraceNameForComputedSummaryResult(
       self, trace_tag):
     pass
 
   def GetRepresentativeNumber(self):
     pass
 
   def GetRepresentativeString(self):
     pass
 
   @staticmethod
@@ skipping 141 matching lines @@
           'units': 'unit'
         }
     d1 = {
           'type': 'value_for_from_dict_test',
           'name': 'y',
           'units': 'unit'
         }
     vs = value.Value.ListOfValuesFromListOfDicts([d0, d1], {})
     self.assertEquals(vs[0].name, 'x')
     self.assertEquals(vs[1].name, 'y')