https://bugs.webkit.org/show_bug.cgi?id=122565

Patch by Sergio Correia <sergio.correia@openbossa.org> on 2013-10-09
Reviewed by Noam Rosenthal.

Source/WebCore:

Replace roundedIntRect call in computePixelAlignment() with enclosingIntRect,
so that very small rectangles (after content scaling) don't appear to be empty,
creating a crash later.

Test: transforms/3d/general/rotate-45-degrees-long-inner-text-in-dt.html

* platform/graphics/texmap/coordinated/CoordinatedGraphicsLayer.cpp:
(WebCore::CoordinatedGraphicsLayer::computePixelAlignment):

LayoutTests:

Added test that rotates 45 degrees a very long text in a dt tag that
might crash the browser depending on how it handles the integer
rounding when computing pixel alignment.

* transforms/3d/general/rotate-45-degrees-long-inner-text-in-dt-expected.txt: Added.
* transforms/3d/general/rotate-45-degrees-long-inner-text-in-dt.html: Added.

git-svn-id: http://svn.webkit.org/repository/webkit/trunk@157180 268f45cc-cd09-0410-ab3c-d52691b4dbfc