Move declarative API into events API

chrome/renderer/resources/extensions/declarative_webrequest_custom_bindings.js

Index: chrome/renderer/resources/extensions/declarative_webrequest_custom_bindings.js
diff --git a/chrome/renderer/resources/extensions/declarative_webrequest_custom_bindings.js b/chrome/renderer/resources/extensions/declarative_webrequest_custom_bindings.js
index 9ae24cc69f7238729a7c8f37398411cd7f9d76a1..d2fa553ab91cd65d10e28a84b8a6dce335912b42 100644
--- a/chrome/renderer/resources/extensions/declarative_webrequest_custom_bindings.js
+++ b/chrome/renderer/resources/extensions/declarative_webrequest_custom_bindings.js
@@ -5,14 +5,13 @@
 // Custom bindings for the declarativeWebRequest API.
 
 var chromeHidden = requireNative('chrome_hidden').GetChromeHidden();
+var utils = require('utils');
 
 chromeHidden.registerCustomHook('declarativeWebRequest', function(api) {
   // Returns the schema definition of type |typeId| defined in |namespace|.
   function getSchema(namespace, typeId) {
-    var filterNamespace = function(val) {return val.namespace === namespace;};
-    var apiSchema = api.apiDefinitions.filter(filterNamespace)[0];
-    var filterTypeId = function (val) {return val.id === typeId;};
-    var resultSchema = apiSchema.types.filter(filterTypeId)[0];
+    var apiSchema = utils.lookup(api.apiDefinitions, 'namespace', namespace);
+    var resultSchema = utils.lookup(apiSchema.types, 'id', typeId);
     return resultSchema;
   }