Remove deprecated ...EXTENSION_READY... from user_script_master.cc

chrome/browser/extensions/user_script_master.h

Index: chrome/browser/extensions/user_script_master.h
diff --git a/chrome/browser/extensions/user_script_master.h b/chrome/browser/extensions/user_script_master.h
index 3252a8417fc1a998064890b729fedc9db2b538b2..3ddf292a8e773dc9a4bbca8fb2d4c1e03cc42b77 100644
--- a/chrome/browser/extensions/user_script_master.h
+++ b/chrome/browser/extensions/user_script_master.h
@@ -80,6 +80,9 @@ class UserScriptMaster : public content::NotificationObserver,
       const Extension* extension,
       UnloadedExtensionInfo::Reason reason) OVERRIDE;
 
+  // Called when ExtensionSystem is ready.
+  void OnExtensionsReady();
+
   // Called once we have finished loading the scripts on the file thread.
   void OnScriptsLoaded(scoped_ptr<UserScriptList> user_scripts,
                        scoped_ptr<base::SharedMemory> shared_memory);