REGRESSION (r161195): Acid2 regression tests frequently fail
https://bugs.webkit.org/show_bug.cgi?id=126432

Source/WebCore: 

Reviewed by Anders Carlsson.
        
We would occasionally dump the render tree before the actual last resource on the page was loaded.
The problematic resource is an image loaded by an <object> tag nested as fallback of another <object>.

* html/HTMLObjectElement.cpp:
(WebCore::HTMLObjectElement::renderFallbackContent):
        
    Force style recalc when rendering fallback content. The current mechanism for triggering the fallback content load
    requires a style recalc.

LayoutTests: 

Reviewed by Anders Carlsson.

* TestExpectations: acid2 is no longer flaky.
* fast/overflow/overflow-height-float-not-removed-crash3-expected.txt: whitespace change.



git-svn-id: http://svn.webkit.org/repository/webkit/trunk@161484 268f45cc-cd09-0410-ab3c-d52691b4dbfc
Unreviewed GTK gardening.
Add a flaky expectation for perf/accessibility-title-ui-element.html and a failure expectation
for http/tests/media/video-auth.html.

* platform/gtk/TestExpectations:


git-svn-id: http://svn.webkit.org/repository/webkit/trunk@161488 268f45cc-cd09-0410-ab3c-d52691b4dbfc
REGRESSION: webgl/1.0.2/conformance/textures/tex-image-and-sub-image-2d-with-video-rgb565.html is very flaky
https://bugs.webkit.org/show_bug.cgi?id=126624

* platform/mac/TestExpectations: Mark it as such.



git-svn-id: http://svn.webkit.org/repository/webkit/trunk@161489 268f45cc-cd09-0410-ab3c-d52691b4dbfc
Unreviewed GTK gardening.

* Scripts/run-gtk-tests:
(TestRunner): Skipping the snapshot test case from the TestWebKitWebView test suite.
The test is failing due to issues with Xvfb, with the problem being handled in bug #120404.


git-svn-id: http://svn.webkit.org/repository/webkit/trunk@161490 268f45cc-cd09-0410-ab3c-d52691b4dbfc