Incremental changes towards more efficient refactoring of gclient.py

gclient_utils.py

Index: gclient_utils.py
diff --git a/gclient_utils.py b/gclient_utils.py
index 327dfe435d9f245ea754e7fec0fcbef97d3d482a..3297e63872c20363d4810660c23160b95f55806c 100644
--- a/gclient_utils.py
+++ b/gclient_utils.py
@@ -301,10 +301,10 @@ def IsUsingGit(root, paths):
       return True
   return False
 
-def FindGclientRoot(from_dir):
+def FindGclientRoot(from_dir, filename='.gclient'):
   """Tries to find the gclient root."""
   path = os.path.realpath(from_dir)
-  while not os.path.exists(os.path.join(path, '.gclient')):
+  while not os.path.exists(os.path.join(path, filename)):
     next = os.path.split(path)
     if not next[1]:
       return None
@@ -312,6 +312,7 @@ def FindGclientRoot(from_dir):
   logging.info('Found gclient root at ' + path)
   return path
 
+
 def PathDifference(root, subpath):
   """Returns the difference subpath minus root."""
   root = os.path.realpath(root)