Split a CHECK in 2 in MiscellaneousBindings::DispatchOnConnect to help

chrome/renderer/extensions/dispatcher.h

Index: chrome/renderer/extensions/dispatcher.h
diff --git a/chrome/renderer/extensions/dispatcher.h b/chrome/renderer/extensions/dispatcher.h
index 6bbefc33d15be6e9b8b89981c634f923e7015a55..0cb9e381b1c02e4d8e64d6257c7d736ddc00e740 100644
--- a/chrome/renderer/extensions/dispatcher.h
+++ b/chrome/renderer/extensions/dispatcher.h
@@ -174,10 +174,6 @@ class Dispatcher : public content::RenderProcessObserver {
   // Update the list of active extensions that will be reported when we crash.
   void UpdateActiveExtensions();
 
-  // Calls RenderThread's RegisterExtension and keeps tracks of which v8
-  // extension is for Chrome Extensions only.
-  void RegisterExtension(v8::Extension* extension, bool restrict_to_extensions);
-
   // Sets up the host permissions for |extension|.
   void InitOriginPermissions(const Extension* extension);
   void AddOrRemoveOriginPermissions(
@@ -226,9 +222,6 @@ class Dispatcher : public content::RenderProcessObserver {
   // not idle, to ensure that IdleHandle gets called eventually.
   base::RepeatingTimer<content::RenderThread> forced_idle_timer_;
 
-  // The v8 extensions which are restricted to extension-related contexts.
-  std::set<std::string> restricted_v8_extensions_;
-
   // All declared function names.
   std::set<std::string> function_names_;