rn: adapt to API changes in google signin

react/features/google-api/googleApi.native.js

@@ -35,6 +35,15 @@ class GoogleApi {
         }
     }
 
+    /**
+     * Retrieves the current tokens.
+     *
+     * @returns {Promise}
+     */
+    getTokens(): Promise<*> {
+        return GoogleSignin.getTokens();
+    }
+
     /**
      * Retrieves the available YouTube streams the user can use for live
      * streaming.

react/features/recording/components/LiveStream/native/StartLiveStreamDialog.js

@@ -119,13 +119,22 @@ class StartLiveStreamDialog extends AbstractStartLiveStreamDialog<Props> {
      * @returns {void}
      */
     _onUserChanged(response) {
-        if (response && response.accessToken) {
-            googleApi.getYouTubeLiveStreams(response.accessToken)
-            .then(broadcasts => {
-                this.setState({
-                    broadcasts
+        if (response) {
+            googleApi.getTokens()
+                .then(tokens => {
+                    googleApi.getYouTubeLiveStreams(tokens.accessToken)
+                        .then(broadcasts => {
+                            this.setState({
+                                broadcasts
+                            });
+                        });
+                })
+                .catch(() => {
+                    this.setState({
+                        broadcasts: undefined,
+                        streamKey: undefined
+                    });
                 });
-            });
         } else {
             this.setState({
                 broadcasts: undefined,