Expose lib/renderer/api/remote.js to sandboxed renderer

lib/renderer/api/remote.js

@@ -1,6 +1,9 @@
 'use strict'
 
-const {Buffer} = require('buffer')
+// Note: Don't use destructuring assignment for `Buffer`, or we'll hit a
+// browserify bug that makes the statement invalid, throwing an error in
+// sandboxed renderer.
+const Buffer = require('buffer').Buffer
 const v8Util = process.atomBinding('v8_util')
 const {ipcRenderer, isPromise, CallbacksRegistry} = require('electron')
 const resolvePromise = Promise.resolve.bind(Promise)

lib/sandboxed_renderer/api/exports/electron.js

@@ -4,5 +4,21 @@ Object.defineProperties(exports, {
     get: function () {
       return require('../ipc-renderer')
     }
+  },
+  remote: {
+    enumerable: true,
+    get: function () {
+      return require('../../../renderer/api/remote')
+    }
+  },
+  CallbacksRegistry: {
+    get: function () {
+      return require('../../../common/api/callbacks-registry')
+    }
+  },
+  isPromise: {
+    get: function () {
+      return require('../../../common/api/is-promise')
+    }
   }
 })