[Extensions] Add a developerPrivate.updateExtensionConfiguration function

chrome/renderer/resources/extensions/developer_private_custom_bindings.js

Index: chrome/renderer/resources/extensions/developer_private_custom_bindings.js
diff --git a/chrome/renderer/resources/extensions/developer_private_custom_bindings.js b/chrome/renderer/resources/extensions/developer_private_custom_bindings.js
index 43978484bcb4a0baf50b326977d691e4178d2d1d..801329b79bd74cc94c8b8cfbbea9114454933822 100644
--- a/chrome/renderer/resources/extensions/developer_private_custom_bindings.js
+++ b/chrome/renderer/resources/extensions/developer_private_custom_bindings.js
@@ -25,6 +25,16 @@ binding.registerCustomHook(function(bindingsAPI) {
   // developerPrivate.enable is the same as chrome.management.setEnabled.
   // TODO(devlin): Migrate callers off developerPrivate.enable.
   bindingsAPI.compiledApi.enable = chrome.management.setEnabled;
+
+  bindingsAPI.compiledApi.allowFileAccess = function(id, allow, callback) {
+    chrome.developerPrivate.updateExtensionConfiguration(
+        { extensionId: id, fileAccess: allow }, callback);
+  };
+
+  bindingsAPI.compiledApi.allowIncognito = function(id, allow, callback) {
+    chrome.developerPrivate.updateExtensionConfiguration(
+        { extensionId: id, incognitoAccess: allow }, callback);
+  };
 });
 
 exports.binding = binding.generate();