The following layout test are failing since r180924 (http://trac.webkit.org/changeset/180924): fast/regions/repaint/region-painting-in-composited-view.html -> https://build.webkit.org/results/GTK%20Linux%2064-bit%20Release%20%28Tests%29/r180999%20%286665%29/fast/regions/repaint/region-painting-in-composited-view-diffs.html transforms/2d/perspective-not-fixed-container.html -> https://build.webkit.org/results/GTK%20Linux%2064-bit%20Release%20%28Tests%29/r180999%20%286665%29/transforms/2d/perspective-not-fixed-container-diffs.html transforms/hittest-translated-content-off-to-infinity-and-back.html -> transforms/hittest-translated-content-off-to-infinity-and-back css3/calc/transforms-translate.html -> https://build.webkit.org/results/GTK%20Linux%2064-bit%20Release%20%28Tests%29/r180999%20%286665%29/css3/calc/transforms-translate-diffs.html fast/clip/clip-when-rect-has-fractional-pixel-value.html -> https://build.webkit.org/results/GTK%20Linux%2064-bit%20Release%20%28Tests%29/r180999%20%286665%29/fast/clip/clip-when-rect-has-fractional-pixel-value-diffs.html fast/layers/no-clipping-overflow-hidden-hardware-acceleration.html -> https://build.webkit.org/results/GTK%20Linux%2064-bit%20Release%20%28Tests%29/r180999%20%286665%29/fast/layers/no-clipping-overflow-hidden-hardware-acceleration-diffs.html fast/regions/repaint/fixed-in-named-flow-cb-changed.html -> https://build.webkit.org/results/GTK%20Linux%2064-bit%20Release%20%28Tests%29/r180999%20%286665%29/fast/regions/repaint/fixed-in-named-flow-cb-changed-diffs.html
There might be a problem with the web view size not correctly propagated to the web process when the web process is in AC mode, but the web view hasn't been realized yet. I'll look at it.
Found 7 tests; running 7, skipping 0. Running 6 WebKitTestRunners in parallel. [6/7] fast/clip/clip-when-rect-has-fractional-pixel-value.html passed unexpectedly [6/7] fast/regions/repaint/fixed-in-named-flow-cb-changed.html passed unexpectedly [7/7] fast/layers/no-clipping-overflow-hidden-hardware-acceleration.html passed unexpectedly [7/7] transforms/2d/perspective-not-fixed-container.html passed unexpectedly [7/7] fast/regions/repaint/region-painting-in-composited-view.html passed unexpectedly 2 tests ran as expected, 5 didn't: Expected to fail, but passed: (5) fast/clip/clip-when-rect-has-fractional-pixel-value.html fast/layers/no-clipping-overflow-hidden-hardware-acceleration.html fast/regions/repaint/fixed-in-named-flow-cb-changed.html fast/regions/repaint/region-painting-in-composited-view.html transforms/2d/perspective-not-fixed-container.html I can't reproduce the issues :-(
Revision r181138 (http://trac.webkit.org/changeset/181138) seems to fix most of these issues. I have to take a look at it.
This test are passing after r181138. Updating Test Expectations on https://bugs.webkit.org/show_bug.cgi?id=142665.