Gallery: Random fixes for the Viewport class.

ui/file_manager/gallery/js/image_editor/commands.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';
 
 /**
  * Command queue is the only way to modify images.
  * Supports undo/redo.
  * Command execution is asynchronous (callback-based).
@@ skipping 397 matching lines @@
   this.filter_ = filter;
   this.message_ = message;
 };
 
 Command.Filter.prototype = { __proto__: Command.prototype };
 
 /** @override */
 Command.Filter.prototype.execute = function(
     document, srcCanvas, callback, uiContext) {
   var result = this.createCanvas_(document, srcCanvas);
-
   var self = this;
-
   var previousRow = 0;
 
   function onProgressVisible(updatedRow, rowCount) {
     if (updatedRow == rowCount) {
       uiContext.imageView.replace(result);
       if (self.message_)
         uiContext.prompt.show(self.message_, 2000);
       callback(result);
     } else {
       var viewport = uiContext.imageView.viewport_;
 
       var imageStrip = new Rect(viewport.getImageBounds());
       imageStrip.top = previousRow;
       imageStrip.height = updatedRow - previousRow;
 
       var screenStrip = new Rect(viewport.getImageBoundsOnScreen());
       screenStrip.top = Math.round(viewport.imageToScreenY(previousRow));
       screenStrip.height =
           Math.round(viewport.imageToScreenY(updatedRow)) - screenStrip.top;
 
-      uiContext.imageView.paintDeviceRect(
-          viewport.screenToDeviceRect(screenStrip), result, imageStrip);
+      uiContext.imageView.paintDeviceRect(result, imageStrip);
       previousRow = updatedRow;
     }
   }
 
   function onProgressInvisible(updatedRow, rowCount) {
     if (updatedRow == rowCount) {
       callback(result);
     }
   }
 
   filter.applyByStrips(result, srcCanvas, this.filter_,
       uiContext.imageView ? onProgressVisible : onProgressInvisible);
 };