Add a webstore API for installing bundles of extensions.

chrome/common/extensions/api/webstorePrivate.json

Index: chrome/common/extensions/api/webstorePrivate.json
diff --git a/chrome/common/extensions/api/webstorePrivate.json b/chrome/common/extensions/api/webstorePrivate.json
index da19da681b1c20713474bb8b1e5d3ee433d739b1..1dacfff1651ab4cb8da20f2165d55583a21072ac 100644
--- a/chrome/common/extensions/api/webstorePrivate.json
+++ b/chrome/common/extensions/api/webstorePrivate.json
@@ -21,6 +21,43 @@
         ]
       },
       {
+        "name": "installBundle",
+        "description": "Initiates the install process for the given bundle of extensions.",
+        "parameters": [
+          {
+            "name": "details",
+            "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
+                },
+                "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.extension.lastError will be set to 'user_canceled' or 'unknown_error'.",
+            "optional": "true"
+          }
+        ]
+      },
+      {
         "name": "beginInstallWithManifest3",
         "description": "Initiates the install process for the given extension.",
         "parameters": [