Roll src/third_party/skia 6719fcc43b1e..deb512045e6a (7 commits) (#6411)

https://skia.googlesource.com/skia.git/+log/6719fcc43b1e..deb512045e6a


Created with:
  gclient setdep -r src/third_party/skia@deb512045e6a

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.

DEPS

@@ -23,7 +23,7 @@ vars = {
   'fuchsia_git': 'https://fuchsia.googlesource.com',
   'github_git': 'https://github.com',
   'skia_git': 'https://skia.googlesource.com',
-  'skia_revision': '6719fcc43b1eb5ffb18dad630cb6affe81189508',
+  'skia_revision': 'deb512045e6a724ff73d9bd7cdf90bec0470de49',
 
   # When updating the Dart revision, ensure that all entries that are
   # dependencies of Dart are also updated to match the entries in the

ci/licenses_golden/licenses_skia

-Signature: af42f4f10947f3b1f851402388df9efe
+Signature: c796eacb93056c0b4f8856c2ac2e3f79
 
 UNUSED LICENSES:
 
@@ -1336,7 +1336,6 @@ FILE: ../../../third_party/skia/gm/shadermaskfilter.cpp
 FILE: ../../../third_party/skia/gm/sharedcorners.cpp
 FILE: ../../../third_party/skia/gm/skinning.cpp
 FILE: ../../../third_party/skia/gm/trickycubicstrokes.cpp
-FILE: ../../../third_party/skia/gm/wacky_yuv_formats.cpp
 FILE: ../../../third_party/skia/include/android/SkAnimatedImage.h
 FILE: ../../../third_party/skia/include/c/sk_colorspace.h
 FILE: ../../../third_party/skia/include/c/sk_imageinfo.h
@@ -1523,9 +1522,6 @@ FILE: ../../../third_party/skia/src/gpu/effects/GrRectBlurEffect.fp
 FILE: ../../../third_party/skia/src/gpu/effects/GrRectBlurEffect.h
 FILE: ../../../third_party/skia/src/gpu/effects/GrSkSLFP.cpp
 FILE: ../../../third_party/skia/src/gpu/effects/GrSkSLFP.h
-FILE: ../../../third_party/skia/src/gpu/effects/GrUnpremulInputFragmentProcessor.cpp
-FILE: ../../../third_party/skia/src/gpu/effects/GrUnpremulInputFragmentProcessor.fp
-FILE: ../../../third_party/skia/src/gpu/effects/GrUnpremulInputFragmentProcessor.h
 FILE: ../../../third_party/skia/src/gpu/effects/GrYUVtoRGBEffect.cpp
 FILE: ../../../third_party/skia/src/gpu/effects/GrYUVtoRGBEffect.fp
 FILE: ../../../third_party/skia/src/gpu/effects/GrYUVtoRGBEffect.h