Revert of [Extensions] Update more bindings and allow for multiple feature access

extensions/renderer/app_window_custom_bindings.cc

Index: extensions/renderer/app_window_custom_bindings.cc
diff --git a/extensions/renderer/app_window_custom_bindings.cc b/extensions/renderer/app_window_custom_bindings.cc
index befe938e551fe9ad943b0b2420b4aca852cbb6e7..6553e5e307155a7d9d48be9c59abdcc522401dae 100644
--- a/extensions/renderer/app_window_custom_bindings.cc
+++ b/extensions/renderer/app_window_custom_bindings.cc
@@ -22,12 +22,8 @@
 
 AppWindowCustomBindings::AppWindowCustomBindings(ScriptContext* context)
     : ObjectBackedNativeHandler(context) {
-  // The input.ime API also creates an app window (for the ime window), and so
-  // uses these natives.
-  RouteFunction("GetFrame",
-                std::vector<std::string>({"app.window", "input.ime"}),
-                base::Bind(&AppWindowCustomBindings::GetFrame,
-                           base::Unretained(this)));
+  RouteFunction("GetFrame", base::Bind(&AppWindowCustomBindings::GetFrame,
+                                       base::Unretained(this)));
 
   RouteFunction("GetWindowControlsHtmlTemplate",
       base::Bind(&AppWindowCustomBindings::GetWindowControlsHtmlTemplate,