Add Chart JSON processing to Telemetry.

tools/telemetry/telemetry/value/failure_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 sys
 import unittest
 import traceback
 
 from telemetry import value
@@ skipping 17 matching lines @@
       raise NotImplementedError()
     except Exception:
       v1 = failure.FailureValue(self.pages[0], sys.exc_info())
     self.assertEquals('NotImplementedError', v1.name)
 
   def testBuildbotAndRepresentativeValue(self):
     v = failure.FailureValue.FromMessage(self.pages[0], 'Failure')
     self.assertIsNone(v.GetBuildbotValue())
     self.assertIsNone(v.GetBuildbotDataType(
         value.COMPUTED_PER_PAGE_SUMMARY_OUTPUT_CONTEXT))
-    self.assertIsNone(v.GetBuildbotMeasurementAndTraceNameForPerPageResult())
+    self.assertIsNone(v.GetChartAndTraceNameForPerPageResult())
     self.assertIsNone(v.GetRepresentativeNumber())
     self.assertIsNone(v.GetRepresentativeString())
 
   def testAsDict(self):
     v = failure.FailureValue.FromMessage(self.pages[0], 'Failure')
     d = v.AsDictWithoutBaseClassEntries()
     self.assertTrue(d['value'].find('Exception: Failure') > -1)
 
   def testFromDict(self):
     try:
       raise Exception('test')
     except Exception:
       exc_info = sys.exc_info()
     d = {
       'type': 'failure',
       'name': exc_info[0].__name__,
       'units': '',
       'value': ''.join(traceback.format_exception(*exc_info))
     }
     v = value.Value.FromDict(d, {})
 
     self.assertTrue(isinstance(v, failure.FailureValue))
     self.assertEquals(v.name, 'Exception')