Refactoring: de-couple Extensions from "script injection System" [render side]:3

extensions/renderer/user_script_set.h

Index: extensions/renderer/user_script_set.h
diff --git a/extensions/renderer/user_script_set.h b/extensions/renderer/user_script_set.h
index e8d48f9ac89073da24d02dd0a1a8c806a4dc2802..ab2b585bdf3be9ccd8475b7e77089838cd79132d 100644
--- a/extensions/renderer/user_script_set.h
+++ b/extensions/renderer/user_script_set.h
@@ -24,7 +24,6 @@ class WebFrame;
 }
 
 namespace extensions {
-class Extension;
 class ExtensionSet;
 class ScriptInjection;
 
@@ -64,8 +63,7 @@ class UserScriptSet {
       blink::WebFrame* web_frame,
       int tab_id,
       UserScript::RunLocation run_location,
-      const GURL& document_url,
-      const Extension* extension);
+      const GURL& document_url);
 
   // Updates scripts given the shared memory region containing user scripts.
   // Returns true if the scripts were successfully updated.
@@ -83,7 +81,6 @@ class UserScriptSet {
       int tab_id,
       UserScript::RunLocation run_location,
       const GURL& document_url,
-      const Extension* extension,
       bool is_declarative);
 
   // Shared memory containing raw script data.