Roll engine 8df1757d3566..98c1aeaa3b1b (9 commits) (#49079)

https://github.com/flutter/engine/compare/8df1757d3566...98c1aeaa3b1b

git log 8df1757d3566..98c1aeaa3b1b --first-parent --oneline
2020-01-17 ferhat@gmail.com Clipping path fix for browsers that don't use correct units when applying clip-path css using svg (flutter/engine#15712)
2020-01-17 dnfield@google.com fix typo, update path metrics docs (flutter/engine#15715)
2020-01-17 skia-flutter-autoroll@skia.org Roll src/third_party/dart c8f8c11b70b4..843bd2990881 (5 commits) (flutter/engine#15714)
2020-01-17 aam@google.com Roll dart to c8f8c11b70 (flutter/engine#15708)
2020-01-17 garyq@google.com Samsung fix duplication on punctuation: Update keyboard on finish compose. (flutter/engine#15701)
2020-01-17 skia-flutter-autoroll@skia.org Roll src/third_party/skia 2cd5d43f022c..d58b643f10f5 (21 commits) (flutter/engine#15707)
2020-01-17 chinmaygarde@google.com Disable GPUThreadMerger tests inline instead of via harness flags. (flutter/engine#15706)
2020-01-17 dnfield@google.com implicit casts and add missing docs (flutter/engine#15698)
2020-01-17 47866232+chunhtai@users.noreply.github.com loadfontfromlist should send fontchange message to framework (flutter/engine#14805)


If this roll has caused a breakage, revert this CL and stop the roller
using the controls here:
https://autoroll.skia.org/r/flutter-engine-flutter-autoroll
Please CC jimgraham@google.com on the revert to ensure that a human
is aware of the problem.

To report a problem with the AutoRoller itself, please file a bug:
https://bugs.chromium.org/p/skia/issues/entry?template=Autoroller+Bug

Documentation for the AutoRoller is here:
https://skia.googlesource.com/buildbot/+/master/autoroll/README.md

bin/internal/engine.version

-ba045a29ee737d869cadc73969b900bc1e9d1131
\ No newline at end of file
+98c1aeaa3b1b4d6721f35cade23a8032f16ea96c