[Culprit-Finder] Add generator cache decorator.

appengine/findit/gae_libs/gitiles/cached_gitiles_repository.py

Index: appengine/findit/gae_libs/gitiles/cached_gitiles_repository.py
diff --git a/appengine/findit/gae_libs/gitiles/cached_gitiles_repository.py b/appengine/findit/gae_libs/gitiles/cached_gitiles_repository.py
index 1aa50d98e16d5d1eafd756075acabdcd8ef577fc..f2af308bcf678750107d4ac34c3ea5ccb1eed123 100644
--- a/appengine/findit/gae_libs/gitiles/cached_gitiles_repository.py
+++ b/appengine/findit/gae_libs/gitiles/cached_gitiles_repository.py
@@ -13,13 +13,13 @@ CACHE_EXPIRE_TIME_SECONDS = 24 * 60 * 60
 
 class CachedGitilesRepository(GitilesRepository):
 
-  @Cached(namespace='Gitiles-json-view', expire_time=CACHE_EXPIRE_TIME_SECONDS,
-          cache=CompressedMemCache())
+  @Cached(CompressedMemCache(), namespace='Gitiles-json-view',
+          expire_time=CACHE_EXPIRE_TIME_SECONDS)
   def _SendRequestForJsonResponse(self, url, params=None):  # pragma: no cover
     return super(CachedGitilesRepository, self)._SendRequestForJsonResponse(
         url, params=params)
 
-  @Cached(namespace='Gitiles-text-view', expire_time=CACHE_EXPIRE_TIME_SECONDS,
-          cache=PickledMemCache())
+  @Cached(PickledMemCache(), namespace='Gitiles-text-view',
+          expire_time=CACHE_EXPIRE_TIME_SECONDS)
   def _SendRequestForTextResponse(self, url):  # pragma: no cover
     return super(CachedGitilesRepository, self)._SendRequestForTextResponse(url)