REGRESION(r151091) ASSERTION FAILED: m_readableData || m_writableData
https://bugs.webkit.org/show_bug.cgi?id=119142

Reviewed by Jocelyn Turcotte.

Remove invalid assert.

Covered by existing tests.

* platform/qt/PasteboardQt.cpp:
(WebCore::Pasteboard::readData):


git-svn-id: http://svn.webkit.org/repository/webkit/trunk@153461 268f45cc-cd09-0410-ab3c-d52691b4dbfc
REGRESSION: iframes with composited contents are not transparent in WK1
https://bugs.webkit.org/show_bug.cgi?id=76478

Unskip these tests since the root cause has been fixed long ago already.

git-svn-id: http://svn.webkit.org/repository/webkit/trunk@153462 268f45cc-cd09-0410-ab3c-d52691b4dbfc
Mark compositing/patterns tests as passing for mac-wk2
https://bugs.webkit.org/show_bug.cgi?id=119246

These tests run fine on WK2.

* platform/mac-wk2/TestExpectations:

git-svn-id: http://svn.webkit.org/repository/webkit/trunk@153463 268f45cc-cd09-0410-ab3c-d52691b4dbfc
[Qt][Win] Extend disabling of whole-program-optimizations to MSVC 2012
https://bugs.webkit.org/show_bug.cgi?id=119238

Reviewed by Jocelyn Turcotte.

As suggested in https://bugreports.qt-project.org/browse/QTBUG-20556,
the WebKit build with MSVC 2012 is affected by the same size
limitations.

* WebCore.pri:

git-svn-id: http://svn.webkit.org/repository/webkit/trunk@153464 268f45cc-cd09-0410-ab3c-d52691b4dbfc
[Mac] can-read-in-dragstart-event.html and can-read-in-copy-and-cut-events.html fail
https://bugs.webkit.org/show_bug.cgi?id=113094

The test can-read-in-copy-and-cut-events.html now passes on mac-wk2.

* platform/mac/TestExpectations:

git-svn-id: http://svn.webkit.org/repository/webkit/trunk@153465 268f45cc-cd09-0410-ab3c-d52691b4dbfc