Roll Flutter Engine from 3087ec1adddd to 78dced50c467 (3 revisions) (…

…#147693)

flutter/engine@3087ec1...78dced5

2024-05-02 [email protected] et phone home (flutter/engine#52506)
2024-05-02 [email protected] [web] Expose browser_detection through ui_web. (flutter/engine#52380)
2024-05-02 [email protected] [Impeller] remove incremental allocation during filled path tessellation. (flutter/engine#52401)

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 [email protected],[email protected],[email protected] on the revert to ensure that a human
is aware of the problem.

To file a bug in Flutter: https://github.com/flutter/flutter/issues/new/choose

To report a problem with the AutoRoller itself, please file a bug:
https://issues.skia.org/issues/new?component=1389291&template=1850622

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

bin/internal/engine.version

@@ -1 +1 @@
-3087ec1addddff27be5945be6e3530b92fdddf5b
+78dced50c467970a67747cd6b8281be941341b19