MD History/Downloads: convert .bind(this) and function property values to use =>

chrome/browser/resources/md_history/list_container.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.
 
 Polymer({
   is: 'history-list-container',
 
   properties: {
     // The path of the currently selected page.
     selectedPage_: String,
@@ skipping 237 matching lines @@
     this.set('queryState.searchTerm', menu.itemData.item.domain);
     menu.closeMenu();
   },
 
   /** @private */
   onRemoveFromHistoryTap_: function() {
     var browserService = md_history.BrowserService.getInstance();
     browserService.recordAction('EntryMenuRemoveFromHistory');
     var menu = assert(this.$.sharedMenu.getIfExists());
     var itemData = menu.itemData;
-    browserService.deleteItems([itemData.item])
-        .then(function(items) {
-          // This unselect-all resets the toolbar when deleting a selected item
-          // and clears selection state which can be invalid if items move
-          // around during deletion.
-          // TODO(tsergeant): Make this automatic based on observing list
-          // modifications.
-          this.fire('unselect-all');
-          this.getSelectedList_().removeItemsByPath([itemData.path]);
+    browserService.deleteItems([itemData.item]).then(items => {
+      // This unselect-all resets the toolbar when deleting a selected item and
+      // clears selection state which can be invalid if items move around during
+      // deletion. TODO(tsergeant): Make this automatic based on observing list
+      // modifications.
+      this.fire('unselect-all');
+      this.getSelectedList_().removeItemsByPath([itemData.path]);
 
-          var index = itemData.index;
-          if (index == undefined)
-            return;
+      var index = itemData.index;
+      if (index == undefined)
+        return;
 
-          var browserService = md_history.BrowserService.getInstance();
-          browserService.recordHistogram(
-              'HistoryPage.RemoveEntryPosition',
-              Math.min(index, UMA_MAX_BUCKET_VALUE), UMA_MAX_BUCKET_VALUE);
-          if (index <= UMA_MAX_SUBSET_BUCKET_VALUE) {
-            browserService.recordHistogram(
-                'HistoryPage.RemoveEntryPositionSubset', index,
-                UMA_MAX_SUBSET_BUCKET_VALUE);
-          }
-        }.bind(this));
+      var browserService = md_history.BrowserService.getInstance();
+      browserService.recordHistogram(
+          'HistoryPage.RemoveEntryPosition',
+          Math.min(index, UMA_MAX_BUCKET_VALUE), UMA_MAX_BUCKET_VALUE);
+      if (index <= UMA_MAX_SUBSET_BUCKET_VALUE) {
+        browserService.recordHistogram(
+            'HistoryPage.RemoveEntryPositionSubset', index,
+            UMA_MAX_SUBSET_BUCKET_VALUE);
+      }
+    });
     menu.closeMenu();
   },
 
   /**
    * @return {Element}
    * @private
    */
   getSelectedList_: function() { return this.$$('#' + this.selectedPage_); },
 
   /** @private */
   canDeleteHistory_: function() {
     return loadTimeData.getBoolean('allowDeletingHistory');
   }
 });