The overlay layer allows us to have compositing layers even though the web page is not currently using accelerated compositing. These layers can be used to implement tap highlight, inspector overlay and more. Reviewed by Filip Spacek. The WebCore changes support the overlay layer functionality in WebKit by making it possible to add animations from the compositing thread without them being instantly overwritten during the next commit. Also a new custom layer type is added, which allow an overlay layer to draw itself using raw OpenGL calls. An instance of a custom subclass of LayerCompositingThread must be provided when creating the LayerWebKitThread. Then, the custom layer can be used as the content layer of a GraphicsLayer, or by itself.
Created attachment 144230 [details] Patch
Comment on attachment 144230 [details] Patch simply awesome!!!
did not set cq+, since it does not seem to apply. ping me when it is ready to land (its dependencies have landed, for example).
(In reply to comment #2) > (From update of attachment 144230 [details]) > simply awesome!!! It gets a lot better - there's a whole series of upcoming "overlay" patches to create a public BlackBerry::WebKit::WebOverlay API for adding AC layers to the web page =)
Comment on attachment 144230 [details] Patch Clearing flags on attachment: 144230 Committed r118699: <http://trac.webkit.org/changeset/118699>
All reviewed patches have been landed. Closing bug.