We are currently clearing the offscreen surface before rasterizing, but
as we draw the image snapshot of the offscreen surface into the onscreen
surface transparent pixels are blended with the current contents of the onscreen surface instead of replacing them. This is
particularly noticeable when embedding platform views.

https://skia.googlesource.com/skia.git/+log/32262da42bed..df8225e253a2


Created with:
  gclient setdep -r src/third_party/skia@df8225e253a2

The AutoRoll server is located here: https://autoroll.skia.org/r/skia-flutter-autoroll

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

If the roll is causing failures, please contact the current sheriff, who should
be CC'd on the roll, and stop the roller if necessary.

https://skia.googlesource.com/skia.git/+log/df8225e253a2..5b2bda70e52f


Created with:
  gclient setdep -r src/third_party/skia@5b2bda70e52f

The AutoRoll server is located here: https://autoroll.skia.org/r/skia-flutter-autoroll

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

If the roll is causing failures, please contact the current sheriff, who should
be CC'd on the roll, and stop the roller if necessary.

When the flag is true, we currently use a single thread configuration,
and disabled the raster cache for opacity layers.

The flag's name is 'io.flutter_embedded_views_preview'.

https://skia.googlesource.com/skia.git/+log/5b2bda70e52f..11407e56f277


Created with:
  gclient setdep -r src/third_party/skia@11407e56f277

The AutoRoll server is located here: https://autoroll.skia.org/r/skia-flutter-autoroll

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

If the roll is causing failures, please contact the current sheriff, who should
be CC'd on the roll, and stop the roller if necessary.

This reverts commit 731045e.