[Mac] Flip the flag for multi-profiles to on by default.

chrome/browser/ui/webui/ntp/new_tab_sync_setup_handler.cc

Index: chrome/browser/ui/webui/ntp/new_tab_sync_setup_handler.cc
diff --git a/chrome/browser/ui/webui/ntp/new_tab_sync_setup_handler.cc b/chrome/browser/ui/webui/ntp/new_tab_sync_setup_handler.cc
index 90f985d4341314b2b4c6a23a0b4d8942f30fc85f..dcc1d61121dfff547b9ff461efab7972fad8e0ad 100644
--- a/chrome/browser/ui/webui/ntp/new_tab_sync_setup_handler.cc
+++ b/chrome/browser/ui/webui/ntp/new_tab_sync_setup_handler.cc
@@ -142,7 +142,7 @@ void NewTabSyncSetupHandler::UpdateLogin() {
 
   std::string icon_url;
   ProfileInfoCache& cache =
-      g_browser_process->profile_manager()->GetProfileInfoCache();
+      g_browser_process->profile_manager()->GetMutableProfileInfo();

[sail, 2011/08/16 20:17:33]

This doesn't have to be mutable if we move more of the ProfileInfoCache
interface to the parent class. We can do this later though.

   if (cache.GetNumberOfProfiles() > 1) {
     size_t index = cache.GetIndexOfProfileWithPath(
         Profile::FromWebUI(web_ui_)->GetPath());