Facelifts to sync UI

chrome/browser/views/sync/sync_setup_wizard.h

Index: chrome/browser/views/sync/sync_setup_wizard.h
===================================================================
--- chrome/browser/views/sync/sync_setup_wizard.h	(revision 29168)
+++ chrome/browser/views/sync/sync_setup_wizard.h	(working copy)
@@ -19,10 +19,23 @@
 class SyncSetupWizard {
  public:
   enum State {
+    // Show the Google Account login UI.
     GAIA_LOGIN = 0,
+    // A login attempt succeeded.  Depending on initial conditions, this may
+    // cause a transition to DONE, or to wait for an explicit transition (via
+    // Step) to the next state.
     GAIA_SUCCESS,
+    // The user needs to accept a merge and sync warning to proceed.
     MERGE_AND_SYNC,
+    // The panic switch.  Something went terribly wrong during setup and we
+    // can't recover.
     FATAL_ERROR,
+    // A final state for when setup completes and it is possible it is the
+    // user's first time (globally speaking) as the cloud doesn't have any
+    // bookmarks.  We show additional info in this case to explain setting up
+    // more computers.
+    DONE_FIRST_TIME,
+    // A catch-all done case for any setup process.
     DONE
   };
 
@@ -51,6 +64,9 @@
   // the end state to pass to Run for a given |start_state|.
   static State GetEndStateForDiscreteRun(State start_state);
 
+  // Helper to return whether |state| warrants starting a new flow.
+  static bool IsTerminalState(State state);
+
   ProfileSyncService* service_;
 
 #if defined(OS_WIN)