Wire the eula and the dialog display code...

chrome/installer/setup/eula/oem.js

+function checkAccept(f) {
+  if (f.accept.checked) {
+    window.returnValue = 1;
+  } else {
+    window.returnValue = 2;
+  }
+  window.close();
+}
+
+function resize() {
+  var ifr = document.getElementById('ifr');
+  var footer = document.getElementById('footer');
+  
+  ifr.height = footer.offsetTop - ifr.offsetTop;
+}
+
+window.onresize = resize;
+window.onload = resize;