[GTK] Include a crash-fixing patch for the at-spi2-atk dependency
https://bugs.webkit.org/show_bug.cgi?id=114365

Reviewed by Martin Robinson.

Add a patch for the at-spi2-atk 2.8.0 dependency that is applied through the Jhbuild setup.
The patch addresses crashes in the tally_event_reply method. It is already committed into the
at-spi2-atk source tree and will be available with the next stable release, after which the
patch should be removed and the dependency version bumped.

* gtk/jhbuild.modules:
* gtk/patches/at-spi2-atk-2.8.0-null-check-after-cleanup.patch: Added.


git-svn-id: http://svn.webkit.org/repository/webkit/trunk@148110 268f45cc-cd09-0410-ab3c-d52691b4dbfc
Use minimal tiles during live resize
https://bugs.webkit.org/show_bug.cgi?id=114364

Reviewed by Darin Adler.

We currently update non-visible speculative tiles during resizing. We should just drop them.

* page/FrameView.cpp:
(WebCore::FrameView::willStartLiveResize):
(WebCore::FrameView::willEndLiveResize):
* page/FrameView.h:
* rendering/RenderLayerBacking.cpp:
(WebCore::computeTileCoverage):
        
    Use minimal coverage in live resize state.



git-svn-id: http://svn.webkit.org/repository/webkit/trunk@148111 268f45cc-cd09-0410-ab3c-d52691b4dbfc