Replace ENABLE_DIRECTORY_UPLOAD preprocessor statements in IDL files with Conditional attribute
https://bugs.webkit.org/show_bug.cgi?id=114350

Reviewed by Ryosuke Niwa.

The Conditional attribute does not need a preprocessor, which is source of much pain on native windows.

* fileapi/File.idl:


git-svn-id: http://svn.webkit.org/repository/webkit/trunk@148168 268f45cc-cd09-0410-ab3c-d52691b4dbfc
[WK2] Build warning in didReceiveMessage() generated by messages.py
https://bugs.webkit.org/show_bug.cgi?id=112513

Reviewed by Anders Carlsson.

Legacy receiver makes -Wunused-parameter build warnings. This patch is to fix them.

* Scripts/webkit2/messages.py:
(generate_message_handler):


git-svn-id: http://svn.webkit.org/repository/webkit/trunk@148169 268f45cc-cd09-0410-ab3c-d52691b4dbfc