Crop image at image_loader.

ui/file_manager/image_loader/request.js

 // Copyright 2013 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.
 
 /**
  * @typedef {{
  *   cache: (boolean|undefined),
  *   priority: (number|undefined),
  *   taskId: number,
  *   timestamp: (number|undefined),
@@ skipping 469 matching lines @@
  * and finalizes the request process.
  * @private
  */
 Request.prototype.onImageLoad_ = function() {
   // Perform processing if the url is not a data url, or if there are some
   // operations requested.
   if (!this.request_.url.match(/^data/) ||
       ImageLoader.shouldProcess(this.image_.width,
                                 this.image_.height,
                                 this.request_)) {
-    ImageLoader.resize(this.image_, this.canvas_, this.request_);
+    ImageLoader.resizeAndCrop(this.image_, this.canvas_, this.request_);
     ImageLoader.convertColorSpace(
         this.canvas_, this.request_.colorSpace || ColorSpace.SRGB);
     this.sendImage_(true);  // Image changed.
   } else {
     this.sendImage_(false);  // Image not changed.
   }
   this.cleanup_();
   this.downloadCallback_();
 };
 
@@ skipping 32 matching lines @@
   this.image_.src = 'data:image/gif;base64,R0lGODlhAQABAAAAACH5BAEKAAEALAAAAA' +
       'ABAAEAAAICTAEAOw==';
 
   this.xhr_.onload = function() {};
   this.xhr_.abort();
 
   // Dispose memory allocated by Canvas.
   this.canvas_.width = 0;
   this.canvas_.height = 0;
 };