Enable <webview>.executeScript outside of Apps and Extensions [1]

extensions/renderer/web_ui_injection_host.cc

Index: extensions/renderer/web_ui_injection_host.cc
diff --git a/extensions/renderer/web_ui_injection_host.cc b/extensions/renderer/web_ui_injection_host.cc
index 334358a03c1e027c29682401cb13fb4a9612750c..07d91111feeb6e9e40065dbed148635f124671a6 100644
--- a/extensions/renderer/web_ui_injection_host.cc
+++ b/extensions/renderer/web_ui_injection_host.cc
@@ -12,6 +12,11 @@ WebUIInjectionHost::WebUIInjectionHost(const HostID& host_id)
 WebUIInjectionHost::~WebUIInjectionHost() {
 }
 
+// static
+scoped_ptr<const InjectionHost> WebUIInjectionHost::Create(
+    const HostID& host_id) {
+  return scoped_ptr<const InjectionHost>(new WebUIInjectionHost(host_id));
+}
 
 std::string WebUIInjectionHost::GetContentSecurityPolicy() const {
   return std::string();