Implement http auth login dialog for OS X.

chrome/common/temp_scaffolding_stubs.cc

Index: chrome/common/temp_scaffolding_stubs.cc
diff --git a/chrome/common/temp_scaffolding_stubs.cc b/chrome/common/temp_scaffolding_stubs.cc
index 53cf365225fde9fbbf72977203f99b716c60900a..46aacd0ed654cb0e534aa8c82f7658e411baf49f 100644
--- a/chrome/common/temp_scaffolding_stubs.cc
+++ b/chrome/common/temp_scaffolding_stubs.cc
@@ -228,15 +228,6 @@ bool RLZTracker::RecordProductEvent(Product product, AccessPoint point,
 void RunRepostFormWarningDialog(NavigationController*) {
 }
 
-#if defined(OS_MACOSX)
-LoginHandler* CreateLoginPrompt(net::AuthChallengeInfo* auth_info,
-                                URLRequest* request,
-                                MessageLoop* ui_loop) {
-  NOTIMPLEMENTED();
-  return NULL;
-}
-#endif
-
 //--------------------------------------------------------------------------
 
 MemoryDetails::MemoryDetails() {