commit 72d438ee5563db3087ea1f6630834343bdb8fb65
author Yoshifumi Inoue <yosin@chromium.org> Fri Aug 24 08:17:29 2018
committer Commit Bot <commit-bot@chromium.org> Fri Aug 24 08:17:29 2018
tree 1baa0b41ec6e4c265a3cdac8680274cfe30c282b
parent 40f1a7556c25c113bf1f7fcd9b36cfe686051bc7

Implement Element#innerText to conform the spec

NOT READY FOR COMMIT
To commit this patch, I need to do:
 - Rebaseline 9500+ layout files for linux, mac, win, since existing
 implementation doesn't conform the spec[1]
 - Fix DOM distiller bug[3]
  It depends on textContent(true) to have newline for <br>
  https://github.com/chromium/dom-distiller/issues/10
  WebTextTest.testGenerateOutputBRElements should have spec complaint test
  expectation
 - Fix CrSettingsSiteDetailsPermissionTest.All
   change expectations to have <option>s


This patch implements Element#innerText to conform the spec[1].
Pass rate of WPT is changed from 78 failures to 6 failures for 213 test cases.

The design doc is https://goo.gl/VW9xxe.

The differences of current implementations are:
 - No more leading/training newlines
 - No more trailing whitespaces
 - At most two newlines between sequences of <p> and <div>.
 - Contents of <select>, <optgroup> and <option> in result.
 - No newline for <br> for disconnected element.

Note: Handling of <select>, <optgroup> and <option> aren't conformed with the
spec[1] since the spec[1] requires to implement Element#innerText specific
CSS handling, ::first-line, ::first-letter, text-transform etc, for contents
of <option>. I filed the issue[2].


[1] https://html.spec.whatwg.org/multipage/dom.html#the-innertext-idl-attribute
[2] https://github.com/whatwg/html/issues/3797 innerText for <select>, <optgroup> and <option>

TBR=alexmos@chromium.org
TBR=dpapad@chromium.org
TBR=dmazzoni@chromium.org
TBR=skyostil@chromium.org

Bug: 651764, 859410
Cq-Include-Trybots: luci.chromium.try:linux_layout_tests_layout_ng
Change-Id: I48a02db0347d8ebd189f3ef608b31a4a93d89e84
Reviewed-on: https://chromium-review.googlesource.com/1114673
Commit-Queue: Yoshifumi Inoue <yosin@chromium.org>
Reviewed-by: Sami Kyöstilä <skyostil@chromium.org>
Reviewed-by: Yoshifumi Inoue <yosin@chromium.org>
Reviewed-by: Kent Tamura <tkent@chromium.org>
Reviewed-by: Yoichi Osato <yoichio@chromium.org>
Cr-Commit-Position: refs/heads/master@{#585756}