[Findit] Add cracas_crash_analysis

appengine/findit/model/crash/fracas_crash_analysis.py

Index: appengine/findit/model/crash/fracas_crash_analysis.py
diff --git a/appengine/findit/model/crash/fracas_crash_analysis.py b/appengine/findit/model/crash/fracas_crash_analysis.py
index d1214a3fb5e6c8e4a21d79576d2a66a80a41aa5a..dffd69bad694f46b82a2e7d4d9a509ec6cf89f99 100644
--- a/appengine/findit/model/crash/fracas_crash_analysis.py
+++ b/appengine/findit/model/crash/fracas_crash_analysis.py
@@ -7,30 +7,13 @@ import json
 
 from google.appengine.ext import ndb
 
-from model.crash.crash_analysis import CrashAnalysis
+from model.crash.chrome_crash_analysis import ChromeCrashAnalysis
 
 
-class FracasCrashAnalysis(CrashAnalysis):
-  """Represents an analysis of a Chrome crash."""
-  # Customized properties for Fracas crash.
-  historical_metadata = ndb.JsonProperty(indexed=False)
-  channel = ndb.StringProperty(indexed=False)
-
-  def Reset(self):
-    super(FracasCrashAnalysis, self).Reset()
-    self.historical_metadata = None
-    self.channel = None
+class FracasCrashAnalysis(ChromeCrashAnalysis):
+  """Represents an analysis of a Chrome crash on Fracas."""
 
   @staticmethod
   def _CreateKey(crash_identifiers):
     return ndb.Key('FracasCrashAnalysis', hashlib.sha1(
         json.dumps(crash_identifiers, sort_keys=True)).hexdigest())
-
-  @classmethod
-  def Get(cls, crash_identifiers):
-    return cls._CreateKey(crash_identifiers).get()
-
-  @classmethod
-  def Create(cls, crash_identifiers):
-    analysis = cls(key=cls._CreateKey(crash_identifiers))
-    return analysis