Remove Release() from IFX_Edit_UndoItem.

Remove Release() from IFX_Edit_UndoItem.

Also delete unused CFFL_Edit_UndoItem class.

BUG=https://code.google.com/p/pdfium/issues/detail?id=140
R=thestig@chromium.org

Committed: https://pdfium.googlesource.com/pdfium/+/a4fbc2814c231da29104bb8922811127a59bd6e7

[Tom Sepez, 2015-04-20 19:11:34]

tsepez@chromium.org changed reviewers:
+ thestig@chromium.org

[Tom Sepez, 2015-04-20 19:11:49]

Lei, more cleanup.  Thanks.

[Lei Zhang, 2015-04-20 19:31:37]

lgtm

https://codereview.chromium.org/1098043002/diff/60001/fpdfsdk/include/fxedit/...
File fpdfsdk/include/fxedit/fx_edit.h (right):

https://codereview.chromium.org/1098043002/diff/60001/fpdfsdk/include/fxedit/...
fpdfsdk/include/fxedit/fx_edit.h:167: virtual ~IFX_Edit_UndoItem() { }
Impl to .cpp file, but I suppose this is just a move from below. Maybe we can
deal with these later. There's a lot of them.

[Tom Sepez, 2015-04-20 22:12:02]

On 2015/04/20 19:31:37, Lei Zhang wrote:
> lgtm
> 
>
https://codereview.chromium.org/1098043002/diff/60001/fpdfsdk/include/fxedit/...
> File fpdfsdk/include/fxedit/fx_edit.h (right):
> 
>
https://codereview.chromium.org/1098043002/diff/60001/fpdfsdk/include/fxedit/...
> fpdfsdk/include/fxedit/fx_edit.h:167: virtual ~IFX_Edit_UndoItem() { }
> Impl to .cpp file, but I suppose this is just a move from below. Maybe we can
> deal with these later. There's a lot of them.
Yes.  Makes a nice follow-up.

[Tom Sepez, 2015-04-20 22:12:43]

Committed patchset #4 (id:60001) manually as
a4fbc2814c231da29104bb8922811127a59bd6e7 (presubmit successful).