cros: Use runtime stylus detection for ash palette.

chrome/browser/resources/settings/device_page/device_page_browser_proxy.js

Index: chrome/browser/resources/settings/device_page/device_page_browser_proxy.js
diff --git a/chrome/browser/resources/settings/device_page/device_page_browser_proxy.js b/chrome/browser/resources/settings/device_page/device_page_browser_proxy.js
index cd7cf7ddeff85ae850341975e1f07b4f3e3a3554..e9d2737690b73fb7703a72bf947e364696fa35d4 100644
--- a/chrome/browser/resources/settings/device_page/device_page_browser_proxy.js
+++ b/chrome/browser/resources/settings/device_page/device_page_browser_proxy.js
@@ -46,6 +46,9 @@ cr.define('settings', function() {
     /** Initializes the mouse and touchpad handler. */
     initializePointers: function() {},
 
+    /** Initializes the stylus handler. */
+    initializeStylus: function() {},
+
     /**
      * Override to interact with the on-tap/on-keydown event on the Learn More
      * link.
@@ -103,6 +106,11 @@ cr.define('settings', function() {
       chrome.send('initializePointerSettings');
     },
 
+    /** @override */
+    initializeStylus: function() {
+      chrome.send('initializeStylusSettings');
+    },
+
     /** override */
     handleLinkEvent: function(e) {
       // Prevent the link from activating its parent element when tapped or