Abstract manifest branch creation from init to the manifest object

This permits the XML style manifest to use 'default', while other
types can use their own creation strategy for the current branch.

Signed-off-by: Shawn O. Pearce <sop@google.com>

1 files changed, 3 insertions, 0 deletions

diff --git a/manifest.py b/manifest.py
index 0762098b..a2fc9601 100644
--- a/manifest.py
+++ b/manifest.py
@@ -40,5 +40,8 @@ class Manifest(object):
   def projects(self):
     return {}
 
+  def InitBranch(self):
+    pass
+
   def SetMRefs(self, project):
     pass