Add cache_guid accessor to UserShare

chrome/browser/sync/glue/session_model_associator.h

Index: chrome/browser/sync/glue/session_model_associator.h
diff --git a/chrome/browser/sync/glue/session_model_associator.h b/chrome/browser/sync/glue/session_model_associator.h
index 0a61fa12d32162b983e5b5885f1fef6f0805b5ed..48e35e1faf111e1ff813db4265141a56c9ba5542 100644
--- a/chrome/browser/sync/glue/session_model_associator.h
+++ b/chrome/browser/sync/glue/session_model_associator.h
@@ -44,6 +44,7 @@ namespace syncer {
 class BaseTransaction;
 class ReadNode;
 class WriteTransaction;
+struct UserShare;
 }  // namespace syncer
 
 namespace sync_pb {
@@ -387,7 +388,7 @@ class SessionModelAssociator
   }
 
   // Initializes the tag corresponding to this machine.
-  void InitializeCurrentMachineTag(syncer::WriteTransaction* trans);
+  void InitializeCurrentMachineTag(syncer::UserShare* share);
 
   // Initializes the user visible name for this session
   void InitializeCurrentSessionName();