Auto-rebaseline for r176254

http://src.chromium.org/viewvc/blink?view=revision&revision=176254

TBR=eae@chromium.org

Review URL: https://codereview.chromium.org/345853003

git-svn-id: svn://svn.chromium.org/blink/trunk@176577 bbb929c8-8fbe-4397-9dbb-9b2b20218538
setData() of DataTransfer has a void return type

According to HTML5 spec, setData() of DataTranfer interface does not return value.
http://www.w3.org/TR/html/editing.html#the-datatransfer-interface

This change also has been applied to WebKit by below patch.
https://bugs.webkit.org/show_bug.cgi?id=133108

BUG=384952

Review URL: https://codereview.chromium.org/339533002

git-svn-id: svn://svn.chromium.org/blink/trunk@176578 bbb929c8-8fbe-4397-9dbb-9b2b20218538