Add/resurrect support for bundles of WebStore items.

chrome/common/extensions/api/webstore_private.json

 // Copyright (c) 2012 The Chromium Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 [
   {
     "namespace":"webstorePrivate",
     "description": "none",
     "types": [
       {
@@ skipping 215 matching lines @@
               {
                 "name": "result",
                 "$ref": "Result",
                 "description": "A string result code, which will be empty upon success. The possible values in the case of errors include 'unknown_error', 'user_cancelled', 'manifest_error', 'icon_error', 'invalid_id', and 'invalid_icon_url'."
               }
             ]
           }
         ]
       },
       {
+        "name": "installBundle",
+        "description": "Initiates the install process for the given bundle of extensions.",
+        "parameters": [
+          {
+            "name": "details",
+            "type": "object",
+            "properties": {
+              "localizedName": {
+                "type": "string",
+                "description": "A title to use for display in a confirmation dialog."
+              },
+              "iconUrl": {
+                "type": "string",
+                "optional": true,
+                "desciption": "A URL for the image to display in the confirmation dialog"
+              },
+              "authuser": {
+                "type": "string",
+                "optional": true,
+                "description": "The authuser index to be included with CRX download requests in multi-login sessions."
+              }
+            },
+            "additionalProperties": { "type": "any" }
+          },
+          {
+            "name": "contents",
+            "description": "An array of extension details to be installed.",
+            "type": "array",
+            "items": {
+              "type": "object",
+              "properties": {
+                "id": {
+                  "type": "string",
+                  "description": "The id of the extension to be installed.",
+                  "minLength": 32,
+                  "maxLength": 32
+                },
+                "manifest": {
+                  "type": "string",
+                  "description": "A string with the contents of the extension's manifest.json file. During the install process, the browser will check that the downloaded extension's manifest matches what was passed in here.",
+                  "minLength": 1
+                },
+                "iconUrl": {
+                  "type": "string",
+                  "optional": true,
+                  "desciption": "A URL for the image to display in the confirmation dialog"
+                },
+                "localizedName": {
+                  "type": "string",
+                  "description": "A string to use instead of the raw value of the 'name' key from manifest.json."
+                }
+              }
+            }
+          },
+          {
+            "name": "callback",
+            "type": "function",
+            "description": "Called when the install process completes. Upon failures, chrome.runtime.lastError will be set to 'Invalid id', 'User cancelled install', or 'Unknown error'.",
+            "optional": true,
+            "parameters": []
+          }
+        ]
+      },
+      {
         "name": "enableAppLauncher",
         "description": "",
         "parameters": [
           {
             "name": "callback",
             "type": "function",
             "optional": true,
             "parameters": []
           }
         ]
@@ skipping 124 matching lines @@
                 "$ref": "Result",
                 "description": "Whether an attempt to launch an app succeeded, or the reason for failure."
               }
             ]
           }
         ]
       }
     ]
   }
 ]