Add FailureValue and wire it through PageTestResults.

tools/telemetry/telemetry/results/page_measurement_results_unittest.py

Index: tools/telemetry/telemetry/results/page_measurement_results_unittest.py
diff --git a/tools/telemetry/telemetry/results/page_measurement_results_unittest.py b/tools/telemetry/telemetry/results/page_measurement_results_unittest.py
index 12662a7a6492bf309863e11eb61cec4ecc64e99c..51980eae3111f26dc4fbaf6f65fda73229bfb294 100644
--- a/tools/telemetry/telemetry/results/page_measurement_results_unittest.py
+++ b/tools/telemetry/telemetry/results/page_measurement_results_unittest.py
@@ -7,6 +7,7 @@ import unittest
 from telemetry import perf_tests_helper
 from telemetry.page import page_set
 from telemetry.results import page_measurement_results
+from telemetry.value import failure
 from telemetry.value import histogram
 from telemetry.value import scalar
 
@@ -112,12 +113,12 @@ class PageMeasurementResultsTest(unittest.TestCase):
     results.WillMeasurePage(self.pages[0])
     results.AddValue(scalar.ScalarValue(self.pages[0], 'a', 'seconds', 3))
     results.DidMeasurePage()
-    results.AddFailureMessage(self.pages[0], 'message')
+    results.AddValue(failure.FailureValue.FromMessage(self.pages[0], 'message'))
 
     results.WillMeasurePage(self.pages[1])
     results.AddValue(scalar.ScalarValue(self.pages[1], 'a', 'seconds', 7))
     results.DidMeasurePage()
-    results.AddFailureMessage(self.pages[1], 'message')
+    results.AddValue(failure.FailureValue.FromMessage(self.pages[1], 'message'))
 
     results.PrintSummary()
     self.assertEquals(results.results, [])
@@ -158,7 +159,7 @@ class PageMeasurementResultsTest(unittest.TestCase):
     results.DidMeasurePage()
 
     results.WillMeasurePage(self.pages[1])
-    results.AddFailureMessage(self.pages[1], "Failure")
+    results.AddValue(failure.FailureValue.FromMessage(self.pages[1], 'Failure'))
     results.DidMeasurePage()
 
     results.WillMeasurePage(self.pages[2])
@@ -166,6 +167,7 @@ class PageMeasurementResultsTest(unittest.TestCase):
     results.DidMeasurePage()
 
     values = results.all_page_specific_values
-    self.assertEquals(2, len(values))
-    self.assertEquals([self.pages[0], self.pages[2]],
-                      [v.page for v in values])
+    self.assertEquals(3, len(values))
+    self.assertEquals(
+        [self.pages[0], self.pages[2]], results.pages_that_succeeded)
+    self.assertEquals([self.pages[1]], results.pages_that_had_failures)