[Extensions] Make chrome://extensions use developerPrivate for unpacked loading

third_party/closure_compiler/externs/developer_private.js

Index: third_party/closure_compiler/externs/developer_private.js
diff --git a/third_party/closure_compiler/externs/developer_private.js b/third_party/closure_compiler/externs/developer_private.js
index 1c1a51bc8c1914273eed59f040b703c54adfe4d7..a94b1998867903682ac3843f388f0009960bdaa8 100644
--- a/third_party/closure_compiler/externs/developer_private.js
+++ b/third_party/closure_compiler/externs/developer_private.js
@@ -76,12 +76,19 @@ var InspectOptions;
 
 /**
  * @typedef {{
- *   failQuietly: boolean
+ *   failQuietly: (boolean|undefined)
  * }}
  */
 var ReloadOptions;
 
 /**
+ * @typedef {{
+ *   failQuietly: (boolean|undefined)
+ * }}
+ */
+var LoadUnpackedOptions;
+
+/**
  * @enum {string}
  */
 chrome.developerPrivate.PackStatus = {
@@ -251,9 +258,10 @@ chrome.developerPrivate.allowIncognito = function(extensionId, allow, callback)
 
 /**
  * Loads a user-selected unpacked item.
+ * @param {LoadUnpackedOptions=} options Additional configuration parameters.
  * @param {Function=} callback
  */
-chrome.developerPrivate.loadUnpacked = function(callback) {};
+chrome.developerPrivate.loadUnpacked = function(options, callback) {};
 
 /**
  * Loads an extension / app.