Fixed multiple undo in the Files.app's image editor.

Fixed multiple undo in the Files.app's image editor.

Before, the multiple undo was malfunctioning, however single undo worked correctly. This is because, first undo is a special case. This patch fixes multiple undo operations which uses base image.

TEST=Open the image editor, try to rotate several times, then undo several times. Try also redo.
BUG=181483
Committed: https://src.chromium.org/viewvc/chrome?view=rev&revision=187261

[mtomasz, 2013-03-11 05:17:45]

@yoshiki: PTAL.

[yoshiki, 2013-03-11 05:21:59]

lgtm with nit.

https://codereview.chromium.org/12761002/diff/1/chrome/browser/resources/file...
File chrome/browser/resources/file_manager/js/image_editor/commands.js (right):

https://codereview.chromium.org/12761002/diff/1/chrome/browser/resources/file...
chrome/browser/resources/file_manager/js/image_editor/commands.js:191:
console.log('TRYING, WITH: ' + this.previousImage_.width);
nit: Can you remove this?

[mtomasz, 2013-03-11 05:44:56]

https://codereview.chromium.org/12761002/diff/1/chrome/browser/resources/file...
File chrome/browser/resources/file_manager/js/image_editor/commands.js (right):

https://codereview.chromium.org/12761002/diff/1/chrome/browser/resources/file...
chrome/browser/resources/file_manager/js/image_editor/commands.js:191:
console.log('TRYING, WITH: ' + this.previousImage_.width);
On 2013/03/11 05:21:59, yoshiki wrote:
> nit: Can you remove this?

Done.

[commit-bot: I haz the power, 2013-03-11 05:45:09]

CQ is trying da patch. Follow status at
https://chromium-status.appspot.com/cq/mtomasz@chromium.org/12761002/5001

[commit-bot: I haz the power, 2013-03-11 09:10:37]

Change committed as 187261