[Cleanup] Files.app: Adds missing periods at the end of the descriptions.

chrome/browser/resources/file_manager/js/image_editor/image_view.js

 // Copyright (c) 2012 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.
 
 /**
  * The overlay displaying the image.
  * @param {HTMLElement} container The container element.
  * @param {Viewport} viewport The viewport.
  * @param {MetadataCache} metadataCache The metadataCache.
  */
@@ skipping 78 matching lines @@
 
 /**
  * The total number of load types.
  */
 ImageView.LOAD_TYPE_TOTAL = 6;
 
 ImageView.prototype = {__proto__: ImageBuffer.Overlay.prototype};
 
 /**
  * Draw below overlays with the default zIndex.
- * @return {number} Z-index
+ * @return {number} Z-index.
  */
 ImageView.prototype.getZIndex = function() { return -1 };
 
 /**
  * Draw the image on screen.
  */
 ImageView.prototype.draw = function() {
   if (!this.contentCanvas_)  // Do nothing if the image content is not set.
     return;
 
@@ skipping 113 matching lines @@
   imageRect = new Rect(imageRect.left * scaleX, imageRect.top * scaleY,
                        imageRect.width * scaleX, imageRect.height * scaleY);
   Rect.drawImage(
       this.screenImage_.getContext('2d'), canvas, deviceRect, imageRect);
 };
 
 /**
  * Create an overlay canvas with properties similar to the screen canvas.
  * Useful for showing quick feedback when editing.
  *
- * @return {HTMLCanvasElement} Overlay canvas
+ * @return {HTMLCanvasElement} Overlay canvas.
  */
 ImageView.prototype.createOverlayCanvas = function() {
   var canvas = this.document_.createElement('canvas');
   canvas.className = 'image';
   this.container_.appendChild(canvas);
   return canvas;
 };
 
 /**
  * Sets up the canvas as a buffer in the device resolution.
@@ skipping 799 matching lines @@
 
 /**
  * @param {HTMLCanvasElement|HTMLVideoElement} element Element.
  * @return {string} Transform string.
  */
 ImageView.Effect.Rotate.prototype.transform = function(element) {
   var ratio = ImageView.Effect.getPixelRatio_(element);
   return 'rotate(' + (this.rotate90_ * 90) + 'deg) ' +
          'scale(' + (this.scale_ / ratio) + ')';
 };