Hand cursor on hover close & back buttons

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

Index: chrome/browser/resources/chromeos/login/screen_gaia_signin.css
diff --git a/chrome/browser/resources/chromeos/login/screen_gaia_signin.css b/chrome/browser/resources/chromeos/login/screen_gaia_signin.css
index c6f585c1c7ac0bfe848ad7d0348a4c3ad5e43c4f..3f6dc002fad6ac335d20727c9a168ae389e6f4e8 100644
--- a/chrome/browser/resources/chromeos/login/screen_gaia_signin.css
+++ b/chrome/browser/resources/chromeos/login/screen_gaia_signin.css
@@ -100,6 +100,10 @@ html[dir=rtl] #close-button-item {
   background-image: url(chrome://theme/IDR_LOGIN_CLOSE_BUTTTON_MASKED);
 }
 
+#close-button-item:hover {
+  cursor: pointer;
+}
+
 #back-button-item {
   background: transparent none;
   background-image: url(chrome://theme/IDR_LOGIN_BACK_BUTTTON);
@@ -127,6 +131,10 @@ html[dir=rtl] #back-button-item {
   background-image: url(chrome://theme/IDR_LOGIN_BACK_BUTTTON_MASKED);
 }
 
+#back-button-item:hover {
+  cursor: pointer;
+}
+
 .signin-text {
   color: #666;
   margin-top: 20px;