Move sync_internals resources and constants to //components.

chrome/browser/resources/sync_internals/events.js

-// Copyright (c) 2011 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.sync.events_tab', function() {
-  'use strict';
-
-  function toggleDisplay(event) {
-    var originatingButton = event.target;
-    if (originatingButton.className != 'toggle-button') {
-      return;
-    }
-    var detailsNode = originatingButton.parentNode.getElementsByClassName(
-        'details')[0];
-    var detailsColumn = detailsNode.parentNode;
-    var detailsRow = detailsColumn.parentNode;
-
-    if (!detailsRow.classList.contains('expanded')) {
-      detailsRow.classList.toggle('expanded');
-      detailsColumn.setAttribute('colspan', 4);
-      detailsNode.removeAttribute('hidden');
-    } else {
-      detailsNode.setAttribute('hidden', '');
-      detailsColumn.removeAttribute('colspan');
-      detailsRow.classList.toggle('expanded');
-    }
-  };
-
-  function displaySyncEvents() {
-    var entries = chrome.sync.log.entries;
-    var eventTemplateContext = {
-      eventList: entries,
-    };
-    var context = new JsEvalContext(eventTemplateContext);
-    jstProcess(context, $('sync-events'));
-  };
-
-  function onLoad() {
-    $('sync-events').addEventListener('click', toggleDisplay);
-    chrome.sync.log.addEventListener('append', function(event) {
-      displaySyncEvents();
-    });
-  }
-
-  return {
-    onLoad: onLoad
-  };
-});
-
-document.addEventListener(
-    'DOMContentLoaded', chrome.sync.events_tab.onLoad, false);