Add desktop UI for the subresource filter content setting.

chrome/browser/resources/settings/privacy_page/privacy_page.html

 <link rel="import" href="chrome://resources/html/polymer.html">
 <link rel="import" href="chrome://resources/cr_elements/cr_dialog/cr_dialog.html">
 <link rel="import" href="chrome://resources/cr_elements/policy/cr_policy_vars_css.html">
 <link rel="import" href="chrome://resources/html/i18n_behavior.html">
 <link rel="import" href="chrome://resources/html/web_ui_listener_behavior.html">
 <link rel="import" href="chrome://resources/polymer/v1_0/iron-flex-layout/iron-flex-layout-classes.html">
 <link rel="import" href="chrome://resources/polymer/v1_0/neon-animation/neon-animatable.html">
 <link rel="import" href="chrome://resources/polymer/v1_0/paper-button/paper-button.html">
 <link rel="import" href="chrome://resources/polymer/v1_0/paper-icon-button/paper-icon-button-light.html">
 <link rel="import" href="../clear_browsing_data_dialog/clear_browsing_data_dialog.html">
@@ skipping 379 matching lines @@
         <settings-subpage page-title="$i18n{siteSettingsCategoryPopups}">
           <category-default-setting category="{{ContentSettingsTypes.POPUPS}}"
               toggle-off-label="$i18n{siteSettingsBlockedRecommended}"
               toggle-on-label="$i18n{siteSettingsAllowed}">
           </category-default-setting>
           <category-setting-exceptions
               category="{{ContentSettingsTypes.POPUPS}}">
           </category-setting-exceptions>
         </settings-subpage>
       </template>
-      <template is="dom-if" route-path="/content/unsandboxedPlugins" no-search>
+      <template is="dom-if" if="[[enableSafeBrowsingSubresourceFilter_]]"
+        route-path="/content/subresourceFilter" no-search>
+        <settings-subpage page-title="$i18n{siteSettingsSubresourceFilter}">
+          <category-default-setting
+              category="{{ContentSettingsTypes.SUBRESOURCE_FILTER}}"
+              toggle-off-label="$i18n{siteSettingsSubresourceFilterAllow}"
+              toggle-on-label="$i18n{siteSettingsSubresourceFilterBlock}">
+          </category-default-setting>
+          <category-setting-exceptions
+              category="{{ContentSettingsTypes.SUBRESOURCE_FITER}}">

[Charlie Harrison, 2017/04/28 23:23:02]

Looks like SUBRESOURCE_FILTER is misspelled here?

[dschuyler, 2017/04/28 23:40:03]

I agree, I'll make a fix for this.

https://codereview.chromium.org/2851933002/

+          </category-setting-exceptions>
+        </settings-subpage>
+     </template>
+     <template is="dom-if" route-path="/content/unsandboxedPlugins" no-search>
         <settings-subpage page-title="$i18n{siteSettingsUnsandboxedPlugins}">
           <category-default-setting
               toggle-off-label="$i18n{siteSettingsUnsandboxedPluginsBlock}"
               toggle-on-label=
                   "$i18n{siteSettingsUnsandboxedPluginsAskRecommended}"
               category="{{ContentSettingsTypes.UNSANDBOXED_PLUGINS}}">
           </category-default-setting>
           <category-setting-exceptions
               category="{{ContentSettingsTypes.UNSANDBOXED_PLUGINS}}">
           </category-setting-exceptions>
@@ skipping 62 matching lines @@
                 category="{{ContentSettingsTypes.PROTECTED_CONTENT}}">
             </category-setting-exceptions>
           </template>
 </if>
         </settings-subpage>
       </template>
     </settings-animated-pages>
   </template>
   <script src="privacy_page.js"></script>
 </dom-module>