Add some missing override keywords
https://bugs.webkit.org/show_bug.cgi?id=128082

Reviewed by Antti Koivisto.

* loader/DocumentThreadableLoader.h:
* loader/LinkLoader.h:
* loader/TextTrackLoader.h:
* xml/parser/XMLDocumentParser.h:


git-svn-id: http://svn.webkit.org/repository/webkit/trunk@163271 268f45cc-cd09-0410-ab3c-d52691b4dbfc
Subpixel rendering: Enable subpixel positioning/sizing/hairline border painting.
https://bugs.webkit.org/show_bug.cgi?id=128009

Reviewed by Simon Fraser.

Snap and clip to device pixels when painting boxes. Enable hairline painting
for solid border.

No existing context to test this functionality yet.

* rendering/RenderBoxModelObject.cpp:
(WebCore::RenderBoxModelObject::paintFillLayerExtended):
(WebCore::RenderBoxModelObject::drawBoxSideFromPath):
* rendering/RenderObject.cpp:
(WebCore::RenderObject::drawLineForBoxSide):
* rendering/style/RenderStyle.cpp:
(WebCore::RenderStyle::getRoundedBorderFor):
(WebCore::RenderStyle::getRoundedInnerBorderFor):


git-svn-id: http://svn.webkit.org/repository/webkit/trunk@163272 268f45cc-cd09-0410-ab3c-d52691b4dbfc