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 0f7ed4dbc8dfc6cc859e6ada503cfb3b4c3047db..7c76063086e94c957931a0bb9e0cad832c0e11f4 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
@@ -41,6 +41,9 @@ 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.
@@ -78,6 +81,11 @@ 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