[Predator] Add CrashData class to process raw json crash data.

appengine/findit/crash/test/findit_test.py

 # Copyright 2016 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 copy
 import logging
 
 from google.appengine.api import app_identity
 
 from crash.findit import Findit
 from crash.type_enums import CrashClient
-from crash.test.crash_pipeline_test import DummyCrashData
 from crash.test.predator_testcase import PredatorTestCase
 from model.crash.fracas_crash_analysis import FracasCrashAnalysis
 
 
 MOCK_GET_REPOSITORY = lambda _: None # pragma: no cover
 
 
 class UnsupportedClient(Findit): # pylint: disable=W0223
   # TODO(http://crbug.com/659346): this isn't being called for some reason.
   @property
@@ skipping 30 matching lines @@
 
   def setUp(self):
     super(FinditTest, self).setUp()
     self.findit = MockFindit()
 
   def testPlatformRename(self):
     self.assertEqual(
         self.findit.RenamePlatform('linux'), 'unix')
 
   def testCheckPolicyUnsupportedClient(self):
-    self.assertIsNone(UnsupportedClient().CheckPolicy(DummyCrashData(
+    self.assertIsNone(UnsupportedClient().CheckPolicy(self.GetDummyCrashData(
         platform = 'canary',
         signature = 'sig',
     )))
 
   def testCreateAnalysisForUnsupportedClientId(self):
     self.assertIsNone(UnsupportedClient('unsupported_id').CreateAnalysis(
         {'signature': 'sig'}))
 
   def testGetAnalysisForUnsuportedClient(self):
     crash_identifiers = {'signature': 'sig'}
@@ skipping 48 matching lines @@
         'client_id': self.findit.client_id,
         'result': copy.deepcopy(analysis_result),
     }
 
     analysis = FracasCrashAnalysis.Create(crash_identifiers)
     analysis.result = analysis_result
 
     self.assertDictEqual(self.findit.GetPublishableResult(crash_identifiers,
                                                           analysis),
                          expected_processed_result)