[BlackBerry] compositing/iframes/scroll-fixed-transformed-element.html fails in manual testing
https://bugs.webkit.org/show_bug.cgi?id=112806

Reviewed by Antonio Gomes.

PR 283363

When scrolling the iframe, the position: fixed element is correctly
positioned, that is, as if it was fixed with respect to the iframe's
viewport. When scrolling the main frame however, the fixed pos element
was positioned as if it was fixed with respect to the main frame's
viewport.

Fixed by falling back to using the WebKit-thread scroll position for
fixed positioning in LayerRenderer, if the override doesn't have a
position currently set, i.e. if we are not currently scrolling the
iframe.

The effects of the bug are only visual, i.e. not detectable by DRT.

Manually testable using compositing/iframes/scroll-fixed-transformed-element.html

* platform/graphics/blackberry/LayerRenderer.cpp:
(WebCore::LayerRenderer::updateLayersRecursive):


git-svn-id: http://svn.webkit.org/repository/webkit/trunk@146366 268f45cc-cd09-0410-ab3c-d52691b4dbfc
AppleWin VS2010 build fix.

* WebKit.vcxproj/WebKitExportGenerator/WebKitExports.def.in:


git-svn-id: http://svn.webkit.org/repository/webkit/trunk@146367 268f45cc-cd09-0410-ab3c-d52691b4dbfc