https://bugs.webkit.org/show_bug.cgi?id=32717

Reviewed by Dave Hyatt.

WebCore:

The following patch, builds ontop of Antti Koivisto's frameset
flattening code from the iPhone source, which itself is based on
the old Nokia Series 60 source.

Layout tests have been added to test the functionality and the original
code which has then been fixed to make these pass, as well as support
frameset grids.

Tests: fast/frames/flattening/frameset-flattening-advanced.html
       fast/frames/flattening/frameset-flattening-grid.html
       fast/frames/flattening/frameset-flattening-simple.html
       fast/frames/flattening/frameset-flattening-subframe-resize.html
       fast/frames/flattening/frameset-flattening-subframesets.html

* page/FrameView.cpp:
(WebCore::FrameView::layout):
(WebCore::FrameView::scheduleRelayout):
* page/Settings.cpp:
(WebCore::Settings::Settings):
(WebCore::Settings::setFrameSetFlatteningEnabled):
* page/Settings.h:
(WebCore::Settings::frameSetFlatteningEnabled):
* rendering/RenderFrame.cpp:
(WebCore::RenderFrame::layoutWithFlattening):
* rendering/RenderFrame.h:
* rendering/RenderFrameSet.cpp:
(WebCore::RenderFrameSet::layout):
(WebCore::RenderFrameSet::positionFramesWithFlattening):
(WebCore::RenderFrameSet::flattenFrameSet):
(WebCore::RenderFrameSet::userResize):
* rendering/RenderFrameSet.h:

WebKit/qt:

Privately export the setFrameSetFlatteningEnabled setting for
use with the Qt DRT.

* Api/qwebpage.cpp:
(qt_drt_setFrameSetFlatteningEnabled):
(QWebPagePrivate::core):
* Api/qwebpage_p.h:

WebKitTools:

Add support for testing frame flattening with the Qt DRT

* DumpRenderTree/qt/LayoutTestControllerQt.cpp:
(LayoutTestController::setFrameSetFlatteningEnabled):
* DumpRenderTree/qt/LayoutTestControllerQt.h:

LayoutTests:

Frameset flattening layout test, plus expected result for Qt.

* fast/frames/flattening/frameset-flattening-advanced.html: Added.
* fast/frames/flattening/frameset-flattening-grid.html: Added.
* fast/frames/flattening/frameset-flattening-simple.html: Added.
* fast/frames/flattening/frameset-flattening-subframe-resize.html: Added.
* fast/frames/flattening/frameset-flattening-subframesets.html: Added.
* fast/frames/flattening/resources/frameset-flattening-subframe-resize.html: Added.
* platform/qt/fast/frames/flattening/frameset-flattening-advanced-expected.txt: Added.
* platform/qt/fast/frames/flattening/frameset-flattening-grid-expected.txt: Added.
* platform/qt/fast/frames/flattening/frameset-flattening-simple-expected.txt: Added.
* platform/qt/fast/frames/flattening/frameset-flattening-subframe-resize-expected.txt: Added.
* platform/qt/fast/frames/flattening/frameset-flattening-subframesets-expected.txt: Added.

git-svn-id: http://svn.webkit.org/repository/webkit/trunk@54440 268f45cc-cd09-0410-ab3c-d52691b4dbfc