Gallery: resize image data to overlay canvas size.

ui/file_manager/gallery/js/image_editor/image_adjust.js

Index: ui/file_manager/gallery/js/image_editor/image_adjust.js
diff --git a/ui/file_manager/gallery/js/image_editor/image_adjust.js b/ui/file_manager/gallery/js/image_editor/image_adjust.js
index 7d79e0470a1e8b7af2bf8d866c0ee7fb70923a52..5592c61fb9eaa16ec7ea7df251aa5805bc1bdb46 100644
--- a/ui/file_manager/gallery/js/image_editor/image_adjust.js
+++ b/ui/file_manager/gallery/js/image_editor/image_adjust.js
@@ -45,15 +45,14 @@ ImageEditor.Mode.Adjust = function(name, title) {
   this.canvas_ = null;
 
   /**
-   * @type {ImageData}
-   * @private
+   * @private {ImageData}
    */
   this.previewImageData_ = null;
 
   /**
-   * @type {ImageData}
+   * @private {ImageData}
    */
-  this.originalImageData = null;
+  this.originalImageData_ = null;
 };
 
 ImageEditor.Mode.Adjust.prototype = {__proto__: ImageEditor.Mode.prototype};
@@ -133,8 +132,10 @@ ImageEditor.Mode.Adjust.prototype.updatePreviewImage_ = function(options) {
       this.canvas_ = this.getImageView().createOverlayCanvas();
 
     this.getImageView().setupDeviceBuffer(this.canvas_);
-    this.originalImageData = this.getImageView().copyScreenImageData();
-    this.previewImageData_ = this.getImageView().copyScreenImageData();
+    this.originalImageData_ = this.getImageView().getScreenImageDataWith(
+        this.canvas_.width, this.canvas_.height);
+    this.previewImageData_ = this.getImageView().getScreenImageDataWith(
+        this.canvas_.width, this.canvas_.height);
 
     isPreviewImageInvalidated = true;
   } else {
@@ -144,11 +145,11 @@ ImageEditor.Mode.Adjust.prototype.updatePreviewImage_ = function(options) {
 
   // Update preview image with applying filter.
   if (isPreviewImageInvalidated) {
-    assert(this.originalImageData);
+    assert(this.originalImageData_);
     assert(this.previewImageData_);
 
     ImageUtil.trace.resetTimer('preview');
-    this.filter_(this.previewImageData_, this.originalImageData, 0, 0);
+    this.filter_(this.previewImageData_, this.originalImageData_, 0, 0);
     ImageUtil.trace.reportTimer('preview');
 
     this.canvas_.getContext('2d').putImageData(this.previewImageData_, 0, 0);