Roll engine ee4c2a53c7c6..0506c65f5915 (5 commits) (#46194)

git@github.com:flutter/engine.git/compare/ee4c2a53c7c6...0506c65f5915

git log ee4c2a53c7c6..0506c65f5915 --first-parent --oneline
2019-12-05 mouad.debbar@gmail.com [web] DOM text measurement return a LineMetrics list if single-line (#14138)
2019-12-05 skia-flutter-autoroll@skia.org Roll fuchsia/sdk/core/mac-amd64 from XCAOU... to qQlb5... (#14144)
2019-12-05 skia-flutter-autoroll@skia.org Roll src/third_party/skia f5542b6aa307..0af13b3caf03 (1 commits) (#14143)
2019-12-05 dnfield@google.com Disable a11y on detach (#14142)
2019-12-05 ferhat@gmail.com Fix firefox detection to fix app startup for other browsers (#14145)


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 chinmaygarde@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

-ee4c2a53c7c6b0411f8f174b8992a4c5a549d01c
+0506c65f5915f9a5ce89cb53ce8b071a23f7c31d