[Findit] Reorganizing findit_for_*.py

appengine/findit/crash/component_classifier.py

Index: appengine/findit/crash/component_classifier.py
diff --git a/appengine/findit/crash/component_classifier.py b/appengine/findit/crash/component_classifier.py
index f607983018baf1ad177a58ffc7243ea3473e314c..12aa8211aa491f09da9ff1a51972b38d3c0feea9 100644
--- a/appengine/findit/crash/component_classifier.py
+++ b/appengine/findit/crash/component_classifier.py
@@ -6,7 +6,7 @@ from collections import namedtuple
 import logging
 import re
 
-from crash.classifier import Classifier
+from crash.occurrence import RankByOccurrence
 
 
 # TODO(wrengr): write coverage tests the old version was lacking.
@@ -38,7 +38,7 @@ class Component(namedtuple('Component',
     return self.function_regex.match(frame.function)
 
 
-class ComponentClassifier(Classifier):
+class ComponentClassifier(object):
   """Determines the component of a crash.
 
   For example: ['Blink>DOM', 'Blink>HTML'].
@@ -90,4 +90,11 @@ class ComponentClassifier(Classifier):
     Returns:
       List of top 2 components.
     """
-    return self._Classify(results, crash_stack, self.top_n, 2)
+    # If |results| are available, we use the components from there since
+    # they're more reliable than the ones from the |crash_stack|.
+    if results:
+      classes = map(self.GetClassFromResult, results[:self.top_n])
+    else:
+      classes = map(self.GetClassFromStackFrame, crash_stack[:self.top_n])
+
+    return RankByOccurrence(classes, 2)