Add ContentSuggestionsService to SnippetsInternals

chrome/browser/resources/snippets_internals.js

 // Copyright 2016 The Chromium Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 cr.define('chrome.SnippetsInternals', function() {
   'use strict';
 
   // Stores the list of snippets we received in receiveSnippets.
   var lastSnippets = [];
 
@@ skipping 20 matching lines @@
     $('last-json-dump').addEventListener('click', function(event) {
       downloadJson($('last-json-text').innerText);
       event.preventDefault();
     });
 
     $('discarded-snippets-clear').addEventListener('click', function(event) {
       chrome.send('clearDiscarded');
       event.preventDefault();
     });
 
+    $('submit-clear-cached-suggestions')
+        .addEventListener('click', function(event) {
+      chrome.send('clearCachedSuggestions');
+      event.preventDefault();
+    });
+
+    $('submit-clear-discarded-suggestions')
+        .addEventListener('click', function(event) {
+      chrome.send('clearDiscardedSuggestions');
+      event.preventDefault();
+    });
+
     chrome.send('loaded');
   }
 
   function setHostRestricted(restricted) {
     receiveProperty('switch-restrict-to-hosts', restricted ? 'True' : 'False');
     if (!restricted) {
       $('hosts-restrict').classList.add('hidden');
     }
   }
 
@@ skipping 11 matching lines @@
   function receiveSnippets(snippets) {
     lastSnippets = snippets;
     displayList(snippets, 'snippets', 'snippet-title');
   }
 
   function receiveDiscardedSnippets(discardedSnippets) {
     displayList(discardedSnippets, 'discarded-snippets',
                 'discarded-snippet-title');
   }
 
+  function receiveContentSuggestions(categoriesList) {
+    displayList(categoriesList, 'content-suggestions',
+                'content-suggestion-title');
+  }
+
   function receiveJson(json) {
     var trimmed = json.trim();
     var hasContent = (trimmed && trimmed != '{}');
 
     if (hasContent) {
       receiveProperty('last-json-text', trimmed);
       $('last-json').classList.remove('hidden');
     } else {
       $('last-json').classList.add('hidden');
     }
   }
 
   function downloadJson(json) {
     // Redirect the browser to download data in |json| as a file "snippets.json"
     // (Setting Content-Disposition: attachment via a data: URL is not possible;
     // create a link with download attribute and simulate a click, instead.)
     var link = document.createElement('a');
     link.download = 'snippets.json';
     link.href = 'data:,' + json;
     link.click();
   }
 
+  function toggleHidden(event) {
+    var id = event.currentTarget.getAttribute('hidden-id');
+    $(id).classList.toggle('hidden');
+  }
+
   function displayList(object, domId, titleClass) {
     jstProcess(new JsEvalContext(object), $(domId));
 
     var text;
     var display;
 
     if (object.list.length > 0) {
       text = '';
       display = 'inline';
     } else {
       text = 'The list is empty.';
       display = 'none';
     }
 
     if ($(domId + '-empty')) $(domId + '-empty').textContent = text;
     if ($(domId + '-clear')) $(domId + '-clear').style.display = display;
 
     var links = document.getElementsByClassName(titleClass);
     for (var link of links) {
-      link.addEventListener('click', function(event) {
-        var id = event.currentTarget.getAttribute('snippet-id');
-        $(id).classList.toggle('hidden');
-      });
+      link.addEventListener('click', toggleHidden);
     }
   }
 
   // Return an object with all of the exports.
   return {
     initialize: initialize,
     setHostRestricted: setHostRestricted,
     receiveProperty: receiveProperty,
     receiveHosts: receiveHosts,
     receiveSnippets: receiveSnippets,
     receiveDiscardedSnippets: receiveDiscardedSnippets,
+    receiveContentSuggestions: receiveContentSuggestions,
     receiveJson: receiveJson,
   };
 });
 
 document.addEventListener('DOMContentLoaded',
                           chrome.SnippetsInternals.initialize);