Exposed test hooks for replacing GAIA auth extension.

chrome/common/chrome_switches.cc

Index: chrome/common/chrome_switches.cc
===================================================================
--- chrome/common/chrome_switches.cc	(revision 95152)
+++ chrome/common/chrome_switches.cc	(working copy)
@@ -1101,13 +1101,13 @@
 // Enables Advanced File System.
 const char kEnableAdvancedFileSystem[]      = "enable-advanced-fs";
 
+// Enables overriding the path for the default authentication extension.
+const char kAuthExtensionPath[]             = "auth-ext-path";
+
 #ifndef NDEBUG
 // Skips all other OOBE pages after user login.
 const char kOobeSkipPostLogin[]             = "oobe-skip-postlogin";
 
-// Enables overriding the path for the default authentication extension.
-const char kAuthExtensionPath[]             = "auth-ext-path";
-
 // Enables overriding the path off file manager extension.
 const char kFileManagerExtensionPath[]      = "filemgr-ext-path";
 #endif