Unified icon-buttons used in the new GAIA flow.

chrome/browser/resources/chromeos/login/gaia_password_changed.css

Index: chrome/browser/resources/chromeos/login/gaia_password_changed.css
diff --git a/chrome/browser/resources/chromeos/login/gaia_password_changed.css b/chrome/browser/resources/chromeos/login/gaia_password_changed.css
index 8a64d3cabb62d0d942c0ae1da4296d9883280d93..d572de24f16b94b33ad0d066bdf002c783e9a668 100644
--- a/chrome/browser/resources/chromeos/login/gaia_password_changed.css
+++ b/chrome/browser/resources/chromeos/login/gaia_password_changed.css
@@ -18,15 +18,15 @@ core-icon[icon='warning'] {
 }
 
 #closeButton {
-  color: rgb(255, 255, 255);
+  color: white;
   position: absolute;
-  right: 0;
-  top: 0;
+  right: 10px;
+  top: 10px;
   z-index: 1;
 }
 
 :host-context(html[dir=rtl]) #closeButton {
-  left: 0;
+  left: 10px;
   right: auto;
 }