[UserScript cleanup] Remove use of ScopedVector from UserScriptSet.

extensions/renderer/user_script_injector.h

Index: extensions/renderer/user_script_injector.h
diff --git a/extensions/renderer/user_script_injector.h b/extensions/renderer/user_script_injector.h
index 4b83d7c505e74055ed26352dceb84e1a53d275b0..2c6c74b9e5b56e2ae721223ed8f82e682004c77f 100644
--- a/extensions/renderer/user_script_injector.h
+++ b/extensions/renderer/user_script_injector.h
@@ -33,8 +33,9 @@ class UserScriptInjector : public ScriptInjector,
 
  private:
   // UserScriptSet::Observer implementation.
-  void OnUserScriptsUpdated(const std::set<HostID>& changed_hosts,
-                            const std::vector<UserScript*>& scripts) override;
+  void OnUserScriptsUpdated(
+      const std::set<HostID>& changed_hosts,
+      const std::vector<std::unique_ptr<UserScript>>& scripts) override;
 
   // ScriptInjector implementation.
   UserScript::InjectionType script_type() const override;