Add desktop UI for the subresource filter content setting.

chrome/browser/resources/settings/privacy_page/privacy_page.js

Index: chrome/browser/resources/settings/privacy_page/privacy_page.js
diff --git a/chrome/browser/resources/settings/privacy_page/privacy_page.js b/chrome/browser/resources/settings/privacy_page/privacy_page.js
index 825633f929ffc159ac677f3a70cc9916a6b7c954..2a20c0aba7377d9008806bb3fa285087636d4495 100644
--- a/chrome/browser/resources/settings/privacy_page/privacy_page.js
+++ b/chrome/browser/resources/settings/privacy_page/privacy_page.js
@@ -87,6 +87,14 @@ Polymer({
       type: Object,
       value: NetworkPredictionOptions,
     },
+
+    /** @private */
+    isSubresourceFilterVisible_: {
+      type: Boolean,
+      value: function() {
+        return loadTimeData.getBoolean('isSubresourceFilterVisible');
+      }
+    },
   },
 
   ready: function() {