[Findit] Factoring the gitiles (etc) stuff out into its own directory

appengine/findit/lib/gitiles/git_repository.py

 # Copyright 2014 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.
 
 
 # pylint: disable=E0711, W0613, R0201
-class Repository(object):  # pragma: no cover
-  """An interface for source code repository."""
+class GitRepository(object):  # pragma: no cover
+  """An interface for access to a Git repository."""
 
   def GetChangeLog(self, revision):
     """Returns the change log of the given revision."""
     raise NotImplemented()
 
   def GetChangeLogs(self, start_revision, end_revision, n=1000):
     """Returns change log list in (start_revision, end_revision]."""
     raise NotImplemented()
 
   def GetChangeDiff(self, revision):
     """Returns the diff of the given revision."""
     raise NotImplemented()
 
   def GetBlame(self, path, revision):
     """Returns blame of the file at ``path`` of the given revision."""
     raise NotImplemented()
 
   def GetSource(self, path, revision):
     """Returns source code of the file at ``path`` of the given revision."""
     raise NotImplemented()