https://bugs.webkit.org/show_bug.cgi?id=88860

Reviewed by Kent Tamura.

So that we can centralize the file paths related code into FileInputType
and makes it easier to extract more data from DragData for
<input type=file> (like bug 88293 for directory drag-and-drop).

No new tests as this has no behavioral changes.

* html/FileInputType.cpp:
(WebCore::FileInputType::receiveDroppedFiles):
* html/FileInputType.h:
* html/HTMLInputElement.cpp:
(WebCore::HTMLInputElement::receiveDroppedFiles):
* html/HTMLInputElement.h:
* html/InputType.cpp:
(WebCore::InputType::receiveDroppedFiles):
* html/InputType.h:
* page/DragController.cpp:
(WebCore::DragController::concludeEditDrag):

git-svn-id: http://svn.webkit.org/repository/webkit/trunk@120081 268f45cc-cd09-0410-ab3c-d52691b4dbfc