Make registering custom hooks with schema_generated_bindings.js safer and

chrome/renderer/resources/extensions/tts_custom_bindings.js

Index: chrome/renderer/resources/extensions/tts_custom_bindings.js
diff --git a/chrome/renderer/resources/extensions/tts_custom_bindings.js b/chrome/renderer/resources/extensions/tts_custom_bindings.js
index 55cc36210cb40a37d2acbf510b7a3e0215b692bf..ef8011aefb57d363ad73bb517534ef1a1a749108 100644
--- a/chrome/renderer/resources/extensions/tts_custom_bindings.js
+++ b/chrome/renderer/resources/extensions/tts_custom_bindings.js
@@ -31,7 +31,7 @@ chromeHidden.registerCustomHook('tts', function(api) {
     }
   });
 
-  apiFunctions.setHandleRequest("tts.speak", function() {
+  apiFunctions.setHandleRequest('speak', function() {
     var args = arguments;
     if (args.length > 1 && args[1] && args[1].onEvent) {
       var id = GetNextTTSEventId();