CL up in https://chromium-review.googlesource.com/c/chromium/src/+/1091301

The following revision refers to this bug:
  https://chromium.googlesource.com/chromium/src.git/+/ea082db3280dd6843ebfb08a625e3eb905c4f5ab

commit ea082db3280dd6843ebfb08a625e3eb905c4f5ab
Author: Dominik Röttsches <drott@chromium.org>
Date: Fri Jun 08 01:12:09 2018

Update emoji data to emoji_data.txt v11

For doing correct emoji segmentation for Emoji contained in Unicode 11,
update our emoji data to v11 [1] until we upgrade to ICU 62.

The SymbolsIterator test extracts all new sequences from
https://unicode.org/emoji/charts/emoji-released.html and makes a single
emoji sequence out of those. The test passes if the whole run has emoji
presentation.

[1] https://unicode.org/Public/emoji//11.0/emoji-data.txt

Test: SymbolsIteratorTest.Emoji11Additions, CharacterTest, EmojificationV11
Bug:  850336 
Change-Id: I72768a20e6dcc78bdaca67224c93e677c9ac5b70
Reviewed-on: https://chromium-review.googlesource.com/1091301
Commit-Queue: Dominik Röttsches <drott@chromium.org>
Reviewed-by: Emil A Eklund <eae@chromium.org>
Reviewed-by: Jungshik Shin <jshin@chromium.org>
Cr-Commit-Position: refs/heads/master@{#565498}
[modify] https://crrev.com/ea082db3280dd6843ebfb08a625e3eb905c4f5ab/third_party/blink/renderer/platform/fonts/symbols_iterator_test.cc
[modify] https://crrev.com/ea082db3280dd6843ebfb08a625e3eb905c4f5ab/third_party/blink/renderer/platform/text/character_emoji.cc
[modify] https://crrev.com/ea082db3280dd6843ebfb08a625e3eb905c4f5ab/third_party/blink/renderer/platform/text/character_test.cc

Issue 838717 has been merged into this issue.

The following revision refers to this bug:
  https://chromium.googlesource.com/chromium/src.git/+/42eb6fbdb9e6783542d49235322aa92a4b4aebc9

commit 42eb6fbdb9e6783542d49235322aa92a4b4aebc9
Author: Dominik Röttsches <drott@chromium.org>
Date: Tue Jul 03 09:40:13 2018

Don't exclude unassigned characters from fallback

We tripped over this when adding Unicode 11 emoji. There is no need to
introduce an additional obstacle for characters that the OS or our Emoji
fallback code might already know about but our ICU might not have been
updated yet.

Bug:  850336 
Change-Id: I0748ac5b755a2d8c3b92be9c9e21cf96ed75be16
Reviewed-on: https://chromium-review.googlesource.com/1122407
Commit-Queue: Dominik Röttsches <drott@chromium.org>
Reviewed-by: Emil A Eklund <eae@chromium.org>
Reviewed-by: Koji Ishii <kojii@chromium.org>
Cr-Commit-Position: refs/heads/master@{#572159}
[modify] https://crrev.com/42eb6fbdb9e6783542d49235322aa92a4b4aebc9/third_party/blink/renderer/platform/fonts/font_cache.cc
[modify] https://crrev.com/42eb6fbdb9e6783542d49235322aa92a4b4aebc9/third_party/blink/renderer/platform/fonts/font_cache_test.cc
[modify] https://crrev.com/42eb6fbdb9e6783542d49235322aa92a4b4aebc9/third_party/blink/renderer/platform/text/character.cc
[modify] https://crrev.com/42eb6fbdb9e6783542d49235322aa92a4b4aebc9/third_party/blink/renderer/platform/text/character.h