[Findit] Add cracas_crash_analysis

appengine/findit/model/crash/chrome_crash_analysis.py

Index: appengine/findit/model/crash/chrome_crash_analysis.py
diff --git a/appengine/findit/model/crash/fracas_crash_analysis.py b/appengine/findit/model/crash/chrome_crash_analysis.py
similarity index 67%
copy from appengine/findit/model/crash/fracas_crash_analysis.py
copy to appengine/findit/model/crash/chrome_crash_analysis.py
index d1214a3fb5e6c8e4a21d79576d2a66a80a41aa5a..6f17ba16b8afd03bd5b94185681b607729177ffd 100644
--- a/appengine/findit/model/crash/fracas_crash_analysis.py
+++ b/appengine/findit/model/crash/chrome_crash_analysis.py
@@ -10,21 +10,20 @@ from google.appengine.ext import ndb
 from model.crash.crash_analysis import CrashAnalysis
 
 
-class FracasCrashAnalysis(CrashAnalysis):
-  """Represents an analysis of a Chrome crash."""
+class ChromeCrashAnalysis(CrashAnalysis):
+  """Represents an analysis of a Chrome Crash (Cracas or Fracas)."""
   # Customized properties for Fracas crash.
   historical_metadata = ndb.JsonProperty(indexed=False)
   channel = ndb.StringProperty(indexed=False)
 
   def Reset(self):
-    super(FracasCrashAnalysis, self).Reset()
+    super(ChromeCrashAnalysis, self).Reset()
     self.historical_metadata = None
     self.channel = None
 
   @staticmethod
   def _CreateKey(crash_identifiers):
-    return ndb.Key('FracasCrashAnalysis', hashlib.sha1(
-        json.dumps(crash_identifiers, sort_keys=True)).hexdigest())
+    raise NotImplementedError()
 
   @classmethod
   def Get(cls, crash_identifiers):
@@ -32,5 +31,4 @@ class FracasCrashAnalysis(CrashAnalysis):
 
   @classmethod
   def Create(cls, crash_identifiers):
-    analysis = cls(key=cls._CreateKey(crash_identifiers))
-    return analysis
+    return cls(key=cls._CreateKey(crash_identifiers))