gdata: Apply correct mount label when mounting archives in GData

chrome/common/extensions/api/fileBrowserPrivate.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":"fileBrowserPrivate",
     "nodoc": "true",
     "types": [
       {
@@ skipping 103 matching lines @@
       {
         "id": "MountPointInfo",
         "type": "object",
         "description": "Mounted point information.",
         "properties": {
           "mountPath": {
             "type": "string",
             "optional": true,
             "description": "Disk volume mount point path. The value corresponds to its Entry.fullPath in File API."
           },
-          "sourceUrl": {
+          "sourcePath": {
             "type": "string",
-            "description": "The path to the mounted devicem, url of the mounted archive file or network resource."
+            "description": "The path to the mounted device, archive file or network resource."
           },
           "mountType": {
             "type": "string",
             "enum": ["device", "file", "network"],
             "description": "Type of the mount."
           },
           "mountCondition": {
             "type": "string",
             "description": "Additional data about mount, for example, that the filesystem is not supported."
           }
@@ skipping 98 matching lines @@
           },
           "status": {
             "type": "string",
             "enum": ["success", "error_unknown", "error_internal",
                      "error_unknown_filesystem", "error_unsuported_filesystem",
                      "error_invalid_archive", "error_libcros_missing",
                      "error_authentication", "error_network",
                      "error_path_unmounted"],
             "description": "Event type that tells listeners if mount was successful or an error occurred. It also specifies the error."
           },
-          "sourceUrl": {
+          "sourcePath": {
             "type": "string",
             "description": "Path that has been mounted."
           },
           "mountPath": {
             "type": "string",
             "optional": true,
             "description": "Path that sourcePath was mounted to."
           },
           "mountType": {
             "type": "string",
@@ skipping 400 matching lines @@
           },
           {
             "name": "mountType",
             "type": "string",
             "enum": ["device", "file", "network", "gdata"],
             "description": "Mount point type. 'file' for compressed files"
           },
           {
             "name": "options",
             "type": "object",
-            "description": "Name/value pairs for source specific options",
-            "optional": true
+            "description": "Name/value pairs for source specific options"
+          },
+          {
+            "name": "callback",
+            "type": "function",
+            "parameters": [
+              {
+                "name": "sourcePath",
+                "type": "string",
+                "description": "Source path of the mount."
+              }
+            ]
           }
         ]
       },
       {
         "name": "removeMount",
         "description": "Unmounts a mounted resource.",
         "parameters": [
           {
             "name": "mountPath",
             "type": "string",
@@ skipping 220 matching lines @@
           {
             "$ref": "FileWatchEvent",
             "name": "event",
             "description": "File watch event information."
           }
         ]
       }
     ]
   }
 ]