Roll engine to ecbb2b28d48a3854aba846da38053cf381cced25 (#20230)

ecbb2b28d Call drawPaint instead of drawPath if there's clip (flutter/engine#5937)
597a50849 Roll src/third_party/skia cdfa16d086b8..4c3b63e289c5 (9 commits) (flutter/engine#5936)
715b64ee3 Roll src/third_party/skia 1400d38e0863..cdfa16d086b8 (10 commits) (flutter/engine#5934)
ffbafc852 Flush all embedded Android views on hot restart. (flutter/engine#5929)
9fe6a573e Roll src/third_party/skia 578ef2847b72..1400d38e0863 (7 commits) (flutter/engine#5933)
3b66f20d9 Don't drop MotionEvents with unknown tool type. (flutter/engine#5931)
391ac2f95 Roll src/third_party/skia 64cc576b1fa7..578ef2847b72 (20 commits) (flutter/engine#5930)

Goldens:
64b7a3a Add updated golden files
cb1fa8a Update golden files of PhysicalModel and PhysicalShape
3baed8d Add a goldens package for the embedded Android views integration test.

bin/internal/engine.version

diff --git a/bin/internal/engine.version b/bin/internal/engine.version
index 21c23eb..2a766c5 100644
--- a/bin/internal/engine.version
+++ b/bin/internal/engine.version
@@ -1 +1 @@
-3f46cd267518ece599cae091df3a8d36826d491a
\ No newline at end of file
+ecbb2b28d48a3854aba846da38053cf381cced25

bin/internal/goldens.version

diff --git a/bin/internal/goldens.version b/bin/internal/goldens.version
index a1f2caf..e717d09 100644
--- a/bin/internal/goldens.version
+++ b/bin/internal/goldens.version
@@ -1,2 +1,2 @@
-6b9d7eb922429f3f86afa4a6ed316e56640ce587
+64b7a3a7aef2fea9c7529d4834bf9eb3d85602d8