Estoy tratando de obtener el archivo usando la API de Google Drive, de manera predeterminada, el archivo no se puede compartir, quiero que sea shar, eable.

Aquí está mi código: -

    <script type="text/javascript" src="https://apis.google.com/js/api.js"></script>
<script src="https://apis.google.com/js/client.js"></script>
        // The Browser API key obtained from the Google Developers Console.
            // Replace with your own Browser API key, or your own key.
            var developerKey = 'XXXXXXXXXX_ff_NX66eb-XXXXXXXXXXX';

            // The Client ID obtained from the Google Developers Console. Replace with your own Client ID.
            var clientId = "XXXXXXXXXX-hs4ujaro5sc3d0g8qndtcq2tl279cfm1.apps.googleusercontent.com"

            // Replace with your own App ID. (Its the first number in your Client ID)
            var appId = "XXXXXXXXXX";
            // Scope to use to access user's Drive items.
            var scope = ['https://www.googleapis.com/auth/drive'];

            var pickerApiLoaded = false;
            var oauthToken;

                  $scope.addGoogleDriveFile = function() {
                    gapi.load('auth', {'callback': onAuthApiLoad});
                     gapi.load('picker', {'callback': onPickerApiLoad}); 
                    gapi.client.setApiKey(developerKey);     
                      }

        function onAuthApiLoad() {
                         window.gapi.auth.authorize(
                             {
                               'client_id': clientId,
                               'scope': scope,
                               'immediate': false
                             },
                             handleAuthResult);
                       }

                        function onPickerApiLoad() {
                          pickerApiLoaded = true;
                          createPicker();
                        }

                        function handleAuthResult(authResult) {
                          if (authResult && !authResult.error) {
                            oauthToken = authResult.access_token;
                            createPicker();
                          }
                        }

                        // Create and render a Picker object for searching images.
                        function createPicker() {
                          if (pickerApiLoaded && oauthToken) {
                            var view = new google.picker.View(google.picker.ViewId.DOCS);
                            var picker = new google.picker.PickerBuilder()
                                .enableFeature(google.picker.Feature.NAV_HIDDEN)
                                .setAppId(appId)
                                .setOAuthToken(oauthToken)
                                .addView(view)
                                .addView(new google.picker.DocsUploadView())
                                .setDeveloperKey(developerKey)
                                .setCallback(pickerCallback)
                                .build();
                             picker.setVisible(true);
                          }
                        }

                    // A simple callback implementation.
                    function pickerCallback(data) {
                      if (data.action == google.picker.Action.PICKED) {
                          console.log(data);
                       gapi.client.load('drive', 'v2').then(function() {
                            var request = gapi.client.drive.files.get({
                            'fileId': data.docs[0].id
                          });   
                           request.execute(function(resp) {
                             console.log(resp);
                          }); 
               });

                      }
                    }

Recibo la siguiente respuesta: -

{
 "kind": "drive#file",
 "id": "0B2Tb9btqdPGHeDl2NU5mYXRIaGc",
 "etag": "\"rCKCAyesbPCaBxGt0eDJcEBQNUI/MTQ1ODgxNDU0MDg2NA\"",
 "selfLink": "https://www.googleapis.com/drive/v2/files/0B2Tb9btqdPGHeDl2NU5mYXRIaGc",
 "webContentLink": "https://docs.google.com/uc?id=0B2Tb9btqdPGHeDl2NU5mYXRIaGc&export=download",
 "alternateLink": "https://drive.google.com/file/d/0B2Tb9btqdPGHeDl2NU5mYXRIaGc/view?usp=drivesdk",
 "iconLink": "https://ssl.gstatic.com/docs/doclist/images/icon_12_pdf_list.png",
 "thumbnailLink": "https://lh6.googleusercontent.com/iriNEeCbpP3OfCxntpc7sK7Dok03tcBJ86X4Be_sFgLXXG1Ta8b2WOM6pF6sEpS8ytaMvA
=s220",
 "title": "POTSS-2012.pdf",
 "mimeType": "application/pdf",
 "labels": {
  "starred": false,
  "hidden": false,
  "trashed": false,
  "restricted": false,
  "viewed": true
 },
 "createdDate": "2016-03-24T09:57:00.978Z",
 "modifiedDate": "2016-03-24T10:15:40.864Z",
 "modifiedByMeDate": "2016-03-24T09:57:00.978Z",
 "lastViewedByMeDate": "2016-03-24T09:57:00.978Z",
 "markedViewedByMeDate": "1970-01-01T00:00:00.000Z",
 "version": "130",
 "parents": [
  {
   "kind": "drive#parentReference",
   "id": "0AGTb9btqdPGHUk9PVA",
   "selfLink": "https://www.googleapis.com/drive/v2/files/0B2Tb9btqdPGHeDl2NU5mYXRIaGc/parents/0AGTb9btqdPGHUk9PVA"
,
   "parentLink": "https://www.googleapis.com/drive/v2/files/0AGTb9btqdPGHUk9PVA",
   "isRoot": true
  }
 ],
 "downloadUrl": "https://doc-0o-3g-docs.googleusercontent.com/docs/securesc/79n10ihd7kdei03rpq502qv5437nv33f
/b6p7kupn55cuqeqq8l0d9vc1orf4bkiv/1458813600000/07489391032112366212/07489391032112366212/0B2Tb9btqdPGHeDl2NU5mYXRIaGc
?e=download&gd=true",
 "userPermission": {
  "kind": "drive#permission",
  "etag": "\"rCKCAyesbPCaBxGt0eDJcEBQNUI/QKpDIyepJ3z6YHq0L3ksgvrZLSo\"",
  "id": "me",
  "selfLink": "https://www.googleapis.com/drive/v2/files/0B2Tb9btqdPGHeDl2NU5mYXRIaGc/permissions/me"
,
  "role": "owner",
  "type": "user"
 },
 "originalFilename": "POTSS-2012.pdf",
 "fileExtension": "pdf",
 "md5Checksum": "5b60cd94d0c0647c8828a60b8ce7efe4",
 "fileSize": "519097",
 "quotaBytesUsed": "519097",
 "ownerNames": [
  "xxxxx IT"
 ],
 "owners": [
  {
   "kind": "drive#user",
   "displayName": "xxxx IT",
   "isAuthenticatedUser": true,
   "permissionId": "07489391032112366212",
   "emailAddress": "it%xxxx [email protected]"
  }
 ],
 "lastModifyingUserName": "xxxxx IT",
 "lastModifyingUser": {
  "kind": "drive#user",
  "displayName": "xxxx IT",
  "isAuthenticatedUser": true,
  "permissionId": "07489391032112366212",
  "emailAddress": "it%[email protected]"
 },
 "editable": true,
 "copyable": true,
 "writersCanShare": true,
 "shared": false,
 "explicitlyTrashed": false,
 "appDataContents": false,
 "headRevisionId": "0B2Tb9btqdPGHT0pGV1FRRis0MmlJVmZsOE5uMU5UK2FNR0g0PQ",
 "spaces": [
  "drive"
 ]
}

Aqui quiero cambiar"compartido": verdadero En lugar de"compartido": falso

¿Como puedo cambiar su permiso?

¿Alguna idea?

Gracias