feat(deeplinking): Pass state to openDesktopApp.

react/features/deep-linking/functions.js

         return Promise.resolve();
     }
 
-    return _openDesktopApp().then(
+    return _openDesktopApp(state).then(
         // eslint-disable-next-line no-confusing-arrow
         result => result ? DeepLinkingDesktopPage : undefined);
 }
 /**
  * Opens the desktop app.
  *
+ * @param {Object} state - Object containing current redux state.
  * @returns {Promise<boolean>} - Resolves with true if the attempt to open the desktop app was successful and resolves
  * with false otherwise.
  */
-export function openDesktopApp() {
-    return _openDesktopApp();
+export function openDesktopApp(state) {
+    return _openDesktopApp(state);
 }

react/features/deep-linking/middleware.js

 MiddlewareRegistry.register(store => next => action => {
     switch (action.type) {
     case OPEN_DESKTOP_APP:
-        openDesktopApp();
+        openDesktopApp(store.getState());
         break;
     }
 

react/features/deep-linking/openDesktopApp.js

+// @flow
+
 /**
  * Opens the desktop app.
  *
+ * @param {Object} state - Object containing current redux state.
  * @returns {Promise<boolean>} - Resolves with true if the attempt to open the desktop app was successful and resolves
  * with false otherwise.
  */
-export function _openDesktopApp() {
+export function _openDesktopApp(state: Object) { // eslint-disable-line no-unused-vars
     return Promise.resolve(false);
 }