Remove repaint callbacks from Viewport.

ui/file_manager/gallery/js/slide_mode.js

 // Copyright 2014 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.
 
 'use strict';
 
 /**
  * Slide mode displays a single image and has a set of controls to navigate
  * between the images and to edit an image.
  *
@@ skipping 64 matching lines @@
 /**
  * @return {string} Mode title.
  */
 SlideMode.prototype.getTitle = function() { return 'GALLERY_SLIDE'; };
 
 /**
  * Initialize the listeners.
  * @private
  */
 SlideMode.prototype.initListeners_ = function() {
-  window.addEventListener('resize', this.onResize_.bind(this), false);
+  window.addEventListener('resize', this.onResize_.bind(this));
 };
 
 /**
  * Initialize the UI.
  * @private
  */
 SlideMode.prototype.initDom_ = function() {
   // Container for displayed image.
   this.imageContainer_ = util.createChild(
       this.document_.querySelector('.content'), 'image-container');
@@ skipping 765 matching lines @@
 
   return true;
 };
 
 /**
  * Resize handler.
  * @private
  */
 SlideMode.prototype.onResize_ = function() {
   this.viewport_.sizeByFrameAndFit(this.container_);
-  this.viewport_.repaint();
+  this.viewport_.update();
+  this.editor_.getBuffer().draw();
 };
 
 /**
  * Update thumbnails.
  */
 SlideMode.prototype.updateThumbnails = function() {
   this.ribbon_.reset();
   if (this.active_)
     this.ribbon_.redraw();
 };
@@ skipping 380 matching lines @@
       done = true;
     }
   }.bind(this);
 };
 
 /**
  * If the user touched the image and moved the finger more than SWIPE_THRESHOLD
  * horizontally it's considered as a swipe gesture (change the current image).
  */
 SwipeOverlay.SWIPE_THRESHOLD = 100;