Add SkipValue to Telemetry.

tools/telemetry/telemetry/value/skip_unittest.py

Index: tools/telemetry/telemetry/value/skip_unittest.py
diff --git a/tools/telemetry/telemetry/value/failure_unittest.py b/tools/telemetry/telemetry/value/skip_unittest.py
similarity index 63%
copy from tools/telemetry/telemetry/value/failure_unittest.py
copy to tools/telemetry/telemetry/value/skip_unittest.py
index 799e047f691517c7f944ea34f8067fd8cf65b41f..beab6244aed9221a3bbcb24112e96aa081caf630 100644
--- a/tools/telemetry/telemetry/value/failure_unittest.py
+++ b/tools/telemetry/telemetry/value/skip_unittest.py
@@ -3,12 +3,11 @@
 # found in the LICENSE file.
 
 import os
-import sys
 import unittest
 
 from telemetry import value
 from telemetry.page import page_set
-from telemetry.value import failure
+from telemetry.value import skip
 
 class TestBase(unittest.TestCase):
   def setUp(self):
@@ -20,17 +19,8 @@ class TestBase(unittest.TestCase):
     return self.page_set.pages
 
 class ValueTest(TestBase):
-  def testName(self):
-    v0 = failure.FailureValue.FromMessage(self.pages[0], 'Failure')
-    self.assertEqual('Exception', v0.name)
-    try:
-      raise NotImplementedError()
-    except Exception:
-      v1 = failure.FailureValue(self.pages[0], sys.exc_info())
-    self.assertEqual('NotImplementedError', v1.name)
-
   def testBuildbotAndRepresentativeValue(self):
-    v = failure.FailureValue.FromMessage(self.pages[0], 'Failure')
+    v = skip.SkipValue(self.pages[0], 'page skipped for testing reason')
     self.assertIsNone(v.GetBuildbotValue())
     self.assertIsNone(v.GetBuildbotDataType(
         value.COMPUTED_PER_PAGE_SUMMARY_OUTPUT_CONTEXT))
@@ -39,6 +29,6 @@ class ValueTest(TestBase):
     self.assertIsNone(v.GetRepresentativeString())
 
   def testAsDict(self):
-    v = failure.FailureValue.FromMessage(self.pages[0], 'Failure')
+    v = skip.SkipValue(self.pages[0], 'page skipped for testing reason')
     d = v.AsDictWithoutBaseClassEntries()
-    self.assertTrue(d['value'].find('Exception: Failure') > -1)
+    self.assertEquals(d['reason'], 'page skipped for testing reason')