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

chrome/browser/resources/md_history/list_container.js

Index: chrome/browser/resources/md_history/list_container.js
diff --git a/chrome/browser/resources/md_history/list_container.js b/chrome/browser/resources/md_history/list_container.js
index b6c1ba2170396571dd22206fb1e4374e269a86ab..37d66f0bdb76deaa4cee101ae65e7eacd3725b9c 100644
--- a/chrome/browser/resources/md_history/list_container.js
+++ b/chrome/browser/resources/md_history/list_container.js
@@ -255,30 +255,28 @@ Polymer({
     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]);
-
-          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));
+    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 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();
   },