MD History: Hook all elements into the page and add tests.

chrome/browser/resources/md_history/history.js

+// Copyright 2015 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.
+
+// Globals:
+/** @const */ var RESULTS_PER_PAGE = 150;
+
+/**
+ * Amount of time between pageviews that we consider a 'break' in browsing,
+ * measured in milliseconds.
+ * @const
+ */
+var BROWSING_GAP_TIME = 15 * 60 * 1000;
+
+window.addEventListener('load', function() {
+  chrome.send('queryHistory', ['', 0, 0, 0, RESULTS_PER_PAGE]);
+});
+
+/**
+ * Our history system calls this function with results from searches.
+ * @param {HistoryQuery} info An object containing information about the query.
+ * @param {Array<HistoryEntry>} results A list of results.
+ */
+function historyResult(info, results) {
+  $('history-card-manager').addNewResults(results);
+}
+
+/**
+ * Listens for history-item being selected or deselected (through checkbox)
+ * and changes the view of the top toolbar.
+ */
+window.addEventListener('history-checkbox-select', function(e) {
+  $('toolbar').count += e.detail.countAddition;
+});
+
+/**
+ * Listens for call to cancel selection and loops through all items to set
+ * checkbox to be unselected.
+ */
+window.addEventListener('unselect-all', function() {
+  $('history-card-manager').unselectAllItems($('toolbar').count);
+  $('toolbar').count = 0;
+});
+
+/**
+ * Listens for any keyboard presses which will close the overflow menu.
+ */
+window.addEventListener('keydown', function(e) {
+  // Escape button on keyboard
+  if (e.keyCode == 27) {
+    $('history-card-manager').closeMenu();
+  }
+});
+
+/**
+ * Resizing browser window will cause the overflow menu to close.
+ */
+window.addEventListener('resize', function() {
+  $('history-card-manager').closeMenu();
+});