Remove third party auth redirect URI domain check.

remoting/webapp/third_party_token_fetcher.js

Index: remoting/webapp/third_party_token_fetcher.js
diff --git a/remoting/webapp/third_party_token_fetcher.js b/remoting/webapp/third_party_token_fetcher.js
index a16246cd0109067ea9411bdb557c6b3a53fc30e5..ca14489e2ecbc5ebe00a749abad561169fd6e060 100644
--- a/remoting/webapp/third_party_token_fetcher.js
+++ b/remoting/webapp/third_party_token_fetcher.js
@@ -88,9 +88,9 @@ remoting.ThirdPartyTokenFetcher.prototype.parseRedirectUrl_ =
     function(responseUrl) {
   var token = '';
   var sharedSecret = '';
-  if (responseUrl &&
-      responseUrl.search(this.redirectUri_ + '#') == 0) {
-    var query = responseUrl.substring(this.redirectUri_.length + 1);
+
+  if (responseUrl && responseUrl.search('#') >= 0) {
+    var query = responseUrl.substring(responseUrl.search('#') + 1);
     var parts = query.split('&');
     /** @type {Object.<string>} */
     var queryArgs = {};
@@ -100,8 +100,7 @@ remoting.ThirdPartyTokenFetcher.prototype.parseRedirectUrl_ =
     }
 
     // Check that 'state' contains the same XSRF token we sent in the request.
-    var xsrfToken = queryArgs['state'];
-    if (xsrfToken == this.xsrfToken_ &&
+    if ('state' in queryArgs && queryArgs['state'] == this.xsrfToken_ &&
         'code' in queryArgs && 'access_token' in queryArgs) {
       // Terminology note:
       // In the OAuth code/token exchange semantics, 'code' refers to the value