Improve HRD first run experience

remoting/webapp/unittests/it2me_helpee_channel_unittest.js

Index: remoting/webapp/unittests/it2me_helpee_channel_unittest.js
diff --git a/remoting/webapp/unittests/it2me_helpee_channel_unittest.js b/remoting/webapp/unittests/it2me_helpee_channel_unittest.js
index 4ccfb08e74a768d3d794dc9e7411b78fad37e07d..ad03b54717a06e323393357e3dde658b1a56c762 100644
--- a/remoting/webapp/unittests/it2me_helpee_channel_unittest.js
+++ b/remoting/webapp/unittests/it2me_helpee_channel_unittest.js
@@ -129,8 +129,11 @@ QUnit.asyncTest('connect() should return access code',
     function() {
   // Stubs authentication.
   sinon.stub(base, 'isAppsV2').returns(true);
-  sinon.stub(remoting.MessageWindow, 'showConfirmWindow')
-      .callsArgWith(4, 1 /* 1 for OK. */);
+  sinon.stub(remoting.HangoutConsentDialog, 'getInstance').returns({
+    show : function() {
+      return Promise.resolve();
+    }
+  });
   sinon.stub(chrome.identity, 'getAuthToken')
       .callsArgWith(1, 'token');
   // Stubs Host behavior.
@@ -154,7 +157,6 @@ QUnit.asyncTest('connect() should return access code',
 
     chrome.identity.getAuthToken.restore();
     base.isAppsV2.restore();
-    remoting.MessageWindow.showConfirmWindow.restore();
     QUnit.start();
   });
 });