SVG image as background and border-style or padding set.
The problem consisted in the drawing path using the default
blending parameter at all times.
https://bugs.webkit.org/show_bug.cgi?id=118894

Patch by Mihai Tica <mitica@adobe.com> on 2014-01-20
Reviewed by Dirk Schulze.

Test: css3/compositing/background-blend-mode-data-uri-svg-image.html

* svg/graphics/SVGImage.cpp:
(WebCore::SVGImage::drawPatternForContainer): Pass blendMode to Image::drawPattern.
* svg/graphics/SVGImage.h: Add a blendMode parameter to drawPatternForContainer.
* svg/graphics/SVGImageForContainer.cpp:
(WebCore::SVGImageForContainer::drawPattern): Pass blendMode to drawPatternForContainer call.

LayoutTests: Background-blend-mode doesn't work for an element with an
SVG image as background and border-style or padding set.
Tests now use rectangles instead of circles for SVGs.
https://bugs.webkit.org/show_bug.cgi?id=118894

Patch by Mihai Tica <mitica@adobe.com> on 2014-01-20
Reviewed by Dirk Schulze.

* css3/compositing/background-blend-mode-data-uri-svg-image-expected.html:
* css3/compositing/background-blend-mode-data-uri-svg-image.html:
* platform/efl/TestExpectations: pass tests for efl, blendMode is not implemented.
* platform/mac/TestExpectations: marking test as ImageOnlyFailure due to slight pixel inconsistencies between the result and the formula.

git-svn-id: http://svn.webkit.org/repository/webkit/trunk@162341 268f45cc-cd09-0410-ab3c-d52691b4dbfc