[Impeller] Reland: Correctly compute UVs in texture fill (#43093)

Resolves https://github.com/flutter/flutter/issues/128353.
Reverts https://github.com/flutter/engine/pull/43087.

Reland without the kDecal usage -- we don't need it after the last
iteration of fixes.
https://dart.googlesource.com/external/github.com/flutter/engine/+/21a7c76d6f13f47e05d989d7f282168bb14348a2
1 file changed
tree: 6e235e87d331ae8c6eb8f7f1513071227e402a0c
  1. commits.json