ntp4: respect non-default apps promo logo

chrome/browser/resources/ntp4/tile_page.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('ntp4', function() {
   'use strict';
 
   // We can't pass the currently dragging tile via dataTransfer because of
   // http://crbug.com/31037
   var currentlyDraggingTile = null;
@@ skipping 883 matching lines @@
       // Only change data if this was not a 'null drag'.
       if (!((index == this.dragItemIndex_) && this.withinPageDrag_)) {
         var adjustedIndex = this.currentDropIndex_ +
             (index > this.dragItemIndex_ ? 1 : 0);
         if (this.withinPageDrag_) {
           this.tileGrid_.insertBefore(
               currentlyDraggingTile,
               this.tileElements_[adjustedIndex]);
           this.tileMoved(currentlyDraggingTile);
         } else {
+          var originalPage = currentlyDraggingTile.tilePage;
           this.addDragData(e.dataTransfer, adjustedIndex);
-          currentlyDraggingTile.tilePage.cleanupDrag();
+          originalPage.cleanupDrag();
         }
 
         // Dropping the icon may cause topMargin to change, but changing it
         // now would cause everything to move (annoying), so we leave it
         // alone. The top margin will be re-calculated next time the window is
         // resized or the page is selected.
       }
 
       this.classList.remove('animating-tile-page');
       this.cleanupDrag();
     },
 
     /**
      * Appends the currently dragged tile to the end of the page. Called
      * from outside the page, e.g. when dropping on a nav dot.
      */
     appendDraggingTile: function() {
       var originalPage = currentlyDraggingTile.tilePage;
       if (originalPage == this)
         return;
 
-      this.addDragData(null, this.tileElements_.length - 1);
+      this.addDragData(null, this.tileElements_.length);
       originalPage.cleanupDrag();
     },
 
     /**
      * Makes sure all the tiles are in the right place after a drag is over.
      * @private
      */
     cleanupDrag: function() {
       for (var i = 0; i < this.tileElements_.length; i++) {
         // The current drag tile will be positioned in its dragend handler.
@@ skipping 59 matching lines @@
      */
     tileMoved: function(draggedTile) {
     },
   };
 
   return {
     getCurrentlyDraggingTile: getCurrentlyDraggingTile,
     TilePage: TilePage,
   };
 });