Looks like part of the plumbing has been done!
https://twitter.com/patrick_h_lauke/status/774954950845722626

Tilt is still missing.

For records: Lan's CL for Mac PointerType included pointerId & pressure. I missed adding this bug to that CL description, sorry.
https://codereview.chromium.org/2022843002

The following revision refers to this bug:
  https://chromium.googlesource.com/chromium/src.git/+/8bf47bb4e1d0ea9599bc443906fc26c3ce86f152

commit 8bf47bb4e1d0ea9599bc443906fc26c3ce86f152
Author: robhogan <robhogan@gmail.com>
Date: Thu Sep 15 11:49:49 2016

Don't repeat headers if at least one row of content doesn't fit

The spec (https://drafts.csswg.org/css-tables-3/#repeated-headers) tells us that
we shouldn't bother repeating headers if a row of content doesn't fit. It's not
clear what to do in the situation where it's just the first page that the row
doesn't fit. I think we ultimately want to do the same as Edge/IE and still
repeat the headers on subsequent pages.

That would require a second layout pass to achieve so for now just drop the
repeating headers if we can't fit a row on the first page.

BUG= 624814 
CQ_INCLUDE_TRYBOTS=master.tryserver.chromium.linux:linux_layout_tests_slimming_paint_v2

Review-Url: https://codereview.chromium.org/2326303002
Cr-Commit-Position: refs/heads/master@{#418838}

[add] https://crrev.com/8bf47bb4e1d0ea9599bc443906fc26c3ce86f152/third_party/WebKit/LayoutTests/fragmentation/single-line-cells-repeating-thead-starts-middle-of-page-break-after-avoid-expected.html
[add] https://crrev.com/8bf47bb4e1d0ea9599bc443906fc26c3ce86f152/third_party/WebKit/LayoutTests/fragmentation/single-line-cells-repeating-thead-starts-middle-of-page-break-after-avoid.html
[modify] https://crrev.com/8bf47bb4e1d0ea9599bc443906fc26c3ce86f152/third_party/WebKit/Source/core/layout/LayoutTableSection.cpp
[modify] https://crrev.com/8bf47bb4e1d0ea9599bc443906fc26c3ce86f152/third_party/WebKit/Source/core/layout/LayoutTableSection.h
[modify] https://crrev.com/8bf47bb4e1d0ea9599bc443906fc26c3ce86f152/third_party/WebKit/Source/core/paint/TableSectionPainter.cpp

+robhogan, looks like you used the wrong bug number?

The following revision refers to this bug:
  https://chromium.googlesource.com/chromium/src.git/+/3c6775ddd60897fd815139b9afe9198c4263dae3

commit 3c6775ddd60897fd815139b9afe9198c4263dae3
Author: lanwei <lanwei@chromium.org>
Date: Tue Sep 20 17:23:36 2016

Plumbing stylus tilt for Mac.

Add the stylus tilt information for pointer event on Mac. Mac's NSEvent's tilt has a range
from -1.0 to 1.0 for both axes, but our values lie in [-90,90].
https://developer.apple.com/reference/appkit/nsevent/1534226-tilt

BUG= 624814 

Review-Url: https://codereview.chromium.org/2349143004
Cr-Commit-Position: refs/heads/master@{#419801}

[modify] https://crrev.com/3c6775ddd60897fd815139b9afe9198c4263dae3/content/browser/renderer_host/input/web_input_event_builders_mac.mm

The following revision refers to this bug:
  https://chromium.googlesource.com/chromium/src.git/+/ee7ca0fdc96ab4ba61d0be876c8e779adced302d

commit ee7ca0fdc96ab4ba61d0be876c8e779adced302d
Author: Robert Hogan <robhogan@gmail.com>
Date: Sat Oct 08 11:56:00 2016

Don't repeat headers if at least one row of content doesn't fit

The spec (https://drafts.csswg.org/css-tables-3/#repeated-headers) tells us that
we shouldn't bother repeating headers if a row of content doesn't fit. It's not
clear what to do in the situation where it's just the first page that the row
doesn't fit. I think we ultimately want to do the same as Edge/IE and still
repeat the headers on subsequent pages.

That would require a second layout pass to achieve so for now just drop the
repeating headers if we can't fit a row on the first page.

BUG= 624814 
CQ_INCLUDE_TRYBOTS=master.tryserver.chromium.linux:linux_layout_tests_slimming_paint_v2

Review-Url: https://codereview.chromium.org/2326303002
Cr-Commit-Position: refs/heads/master@{#418838}
(cherry picked from commit 8bf47bb4e1d0ea9599bc443906fc26c3ce86f152)

Review URL: https://codereview.chromium.org/2400303004 .

Cr-Commit-Position: refs/branch-heads/2840@{#694}
Cr-Branched-From: 1ae106dbab4bddd85132d5b75c670794311f4c57-refs/heads/master@{#414607}

[add] https://crrev.com/ee7ca0fdc96ab4ba61d0be876c8e779adced302d/third_party/WebKit/LayoutTests/fragmentation/single-line-cells-repeating-thead-starts-middle-of-page-break-after-avoid-expected.html
[add] https://crrev.com/ee7ca0fdc96ab4ba61d0be876c8e779adced302d/third_party/WebKit/LayoutTests/fragmentation/single-line-cells-repeating-thead-starts-middle-of-page-break-after-avoid.html
[modify] https://crrev.com/ee7ca0fdc96ab4ba61d0be876c8e779adced302d/third_party/WebKit/Source/core/layout/LayoutTableSection.cpp
[modify] https://crrev.com/ee7ca0fdc96ab4ba61d0be876c8e779adced302d/third_party/WebKit/Source/core/layout/LayoutTableSection.h
[modify] https://crrev.com/ee7ca0fdc96ab4ba61d0be876c8e779adced302d/third_party/WebKit/Source/core/paint/TableSectionPainter.cpp

Rob Hogan, looks like you used the wrong bug number?

The following revision refers to this bug:
  https://chromium.googlesource.com/chromium/src.git/+/ee7ca0fdc96ab4ba61d0be876c8e779adced302d

commit ee7ca0fdc96ab4ba61d0be876c8e779adced302d
Author: Robert Hogan <robhogan@gmail.com>
Date: Sat Oct 08 11:56:00 2016

Don't repeat headers if at least one row of content doesn't fit

The spec (https://drafts.csswg.org/css-tables-3/#repeated-headers) tells us that
we shouldn't bother repeating headers if a row of content doesn't fit. It's not
clear what to do in the situation where it's just the first page that the row
doesn't fit. I think we ultimately want to do the same as Edge/IE and still
repeat the headers on subsequent pages.

That would require a second layout pass to achieve so for now just drop the
repeating headers if we can't fit a row on the first page.

BUG= 624814 
CQ_INCLUDE_TRYBOTS=master.tryserver.chromium.linux:linux_layout_tests_slimming_paint_v2

Review-Url: https://codereview.chromium.org/2326303002
Cr-Commit-Position: refs/heads/master@{#418838}
(cherry picked from commit 8bf47bb4e1d0ea9599bc443906fc26c3ce86f152)

Review URL: https://codereview.chromium.org/2400303004 .

Cr-Commit-Position: refs/branch-heads/2840@{#694}
Cr-Branched-From: 1ae106dbab4bddd85132d5b75c670794311f4c57-refs/heads/master@{#414607}

[add] https://crrev.com/ee7ca0fdc96ab4ba61d0be876c8e779adced302d/third_party/WebKit/LayoutTests/fragmentation/single-line-cells-repeating-thead-starts-middle-of-page-break-after-avoid-expected.html
[add] https://crrev.com/ee7ca0fdc96ab4ba61d0be876c8e779adced302d/third_party/WebKit/LayoutTests/fragmentation/single-line-cells-repeating-thead-starts-middle-of-page-break-after-avoid.html
[modify] https://crrev.com/ee7ca0fdc96ab4ba61d0be876c8e779adced302d/third_party/WebKit/Source/core/layout/LayoutTableSection.cpp
[modify] https://crrev.com/ee7ca0fdc96ab4ba61d0be876c8e779adced302d/third_party/WebKit/Source/core/layout/LayoutTableSection.h
[modify] https://crrev.com/ee7ca0fdc96ab4ba61d0be876c8e779adced302d/third_party/WebKit/Source/core/paint/TableSectionPainter.cpp