Submit button incompatiable with desktop chrome.

ui/login/account_picker/user_pod_template.html

Index: ui/login/account_picker/user_pod_template.html
diff --git a/ui/login/account_picker/user_pod_template.html b/ui/login/account_picker/user_pod_template.html
index 3cd5f64b6a9fd41b5d4be05b165dc06d16467b95..7a50a9cbb0fd2e4d48fcb386758bef4eefd4e157 100644
--- a/ui/login/account_picker/user_pod_template.html
+++ b/ui/login/account_picker/user_pod_template.html
@@ -50,12 +50,16 @@
                  i18n-values="placeholder:passwordHint">
         </div>
         <div class="capslock-hint-container">
+<if expr="chromeos">

[jdufault, 2016/09/08 22:28:59]

Should this be cros only? It looks like we have had the icon on desktop for a
few years.

If this should be cros only, then the entire capslock-hint-container should
probably be disabled.

[xiyuan, 2016/09/08 22:36:29]

We probably have the load error since the code is ported to desktop chrome.
Don't think the caps lock feature is used on desktop chrome. So the whole
container can probably go.

[sammiequon, 2016/09/09 16:06:35]

The caps lock feature is still inside the password box if caps lock is
activated, though there is already a caps lock indicator on the bottom right. 

           <img class="capslock-hint"
                src="chrome://theme/IDR_LOGIN_PASSWORD_CAPS_LOCK" alt>
+</if>
         </div>
+<if expr="chromeos">
         <paper-icon-button class="submit-button" disabled
                            icon="user-pod:arrow-forward">
         </paper-icon-button>
+</if>
       </div>
       <!-- User Click Authentication -->
       <div class="password-label"></div>