In a ToT build (on r480011), vimeo videos (e.g. https://vimeo.com/221472035) does not seem to play anymore. There's a bunch of errors on stdout, and the video does not play. It says "This video can't be played with your current setup.". It produced the following error:


[1:1:0616/180108.033508:ERROR:PaintController.cpp(520)] Visual rect changed in a cached subsequence: "LayoutBlockFlow (relative positioned) (floating) DIV class='iris_chip iris_chip-vod iris_chip--browse iris_chip--left'" old="10,9.46875 32x33" new="10,9.6875 32x33"
[1:1:0616/180108.033862:ERROR:PaintController.cpp(520)] Visual rect changed in a cached subsequence: "LayoutSVGRoot svg class='iris_chip-vod-svg'" old="19,17.4688 15x17" new="19,17.6875 15x17"
[1:1:0616/180108.034056:ERROR:PaintController.cpp(520)] Visual rect changed in a cached subsequence: "LayoutSVGRoot svg class='iris_chip-vod-svg'" old="19,17.4688 15x17" new="19,17.6875 15x17"
[1:1:0616/180108.034325:ERROR:PaintController.cpp(520)] Visual rect changed in a cached subsequence: "LayoutSVGPath path" old="19,19.2656 5x11.7969" new="19,18.4844 5x11.7969"
[1:1:0616/180108.034625:ERROR:PaintController.cpp(520)] Visual rect changed in a cached subsequence: "LayoutSVGPath path" old="19.7969,24.4688 13.1875x9.53125" new="19.7969,23.6875 13.1875x10.0938"
[1:1:0616/180108.034820:ERROR:PaintController.cpp(520)] Visual rect changed in a cached subsequence: "LayoutSVGPath path" old="24,18.3594 9x10.0938" new="24,18 9x9.6875"
[1:1:0616/180108.035072:ERROR:PaintController.cpp(520)] Visual rect changed in a cached subsequence: "LayoutSVGRoot svg class='iris_chip-vod-svg'" old="19,17.4688 15x17" new="19,17.6875 15x17"
[1:1:0616/180108.035323:ERROR:PaintController.cpp(520)] Visual rect changed in a cached subsequence: "LayoutSVGRoot svg class='iris_chip-vod-svg'" old="19,17.4688 15x17" new="19,17.6875 15x17"
...
... and many more in the same line

This is not always logged on stdout though. Sometimes the page crashes (i.e. sad-tab), with the following error:

CSA_ASSERT failed: IntPtrOrSmiGreaterThan(capacity_node, IntPtrOrSmiConstant(0, mode), mode) [../../v8/src/code-stub-assembler.cc:2329]