Rotate an image bitmap in ImageLoader extension when loading detached.

ui/file_manager/image_loader/image_loader.js

Index: ui/file_manager/image_loader/image_loader.js
diff --git a/ui/file_manager/image_loader/image_loader.js b/ui/file_manager/image_loader/image_loader.js
index 3f26ea17243b17f50ecdffe9e70c4b9fa64ebae9..3e30401ec5d49c670ed6d4bf574547b0cf9708ab 100644
--- a/ui/file_manager/image_loader/image_loader.js
+++ b/ui/file_manager/image_loader/image_loader.js
@@ -68,7 +68,11 @@ function ImageLoader() {
               // Ignore the error.
             }
           };
-          if (typeof request.orientation === 'number') {
+          if (request.image_transform) {

[mtomasz, 2017/02/16 08:53:41]

Instead of overriding, can we simply pass the "orientation" parameter in
thumbnail_loader.js? I think it would result in a simpler code.

[yamaguchi, 2017/02/16 14:01:18]

Done.

+            // 'image_transform' option overrides 'orientation' option.
+            request.orientation =
+                ImageOrientation.fromRotationAndScale(request.image_transform);
+          } else if (typeof request.orientation === 'number') {
             request.orientation =
                 ImageOrientation.fromDriveOrientation(request.orientation);
           } else {
@@ -127,4 +131,4 @@ ImageLoader.getInstance = function() {
   if (!ImageLoader.instance_)
     ImageLoader.instance_ = new ImageLoader();
   return ImageLoader.instance_;
-};
+};