Add a WebKit API that registers a V8 extension to be loaded into content

webkit/tools/test_shell/layout_test_controller.cc

Index: webkit/tools/test_shell/layout_test_controller.cc
diff --git a/webkit/tools/test_shell/layout_test_controller.cc b/webkit/tools/test_shell/layout_test_controller.cc
index 5ae2bb319bef62157a1bca6ebb442beedee786dd..24335a4129d970324399315cdccf10dad15ad53c 100644
--- a/webkit/tools/test_shell/layout_test_controller.cc
+++ b/webkit/tools/test_shell/layout_test_controller.cc
@@ -351,7 +351,7 @@ class WorkItemIsolatedWorldScript : public LayoutTestController::WorkItem {
   WorkItemIsolatedWorldScript(const string& script) : script_(script) {}
   bool Run(TestShell* shell) {
     WebScriptSource source(WebString::fromUTF8(script_));
-    shell->webView()->GetMainFrame()->ExecuteScriptInNewWorld(&source, 1);
+    shell->webView()->GetMainFrame()->ExecuteScriptInNewWorld(&source, 1, 0);
     return false;
   }
  private: