Roll Skia from 4bbf2060b008 to 12d0b7fac4c3 (2 revisions)

https://skia.googlesource.com/skia.git/+log/4bbf2060b008..12d0b7fac4c3

2024-02-15 herb@google.com Unpremul for _opts
2024-02-15 robertphillips@google.com [graphite] Add first stage of unpacking the UniqueKeys

If this roll has caused a breakage, revert this CL and stop the roller
using the controls here:
https://autoroll.skia.org/r/skia-flutter-autoroll
Please CC brianosman@google.com,johnstiles@google.com,jsimmons@google.com,rmistry@google.com on the revert to ensure that a human
is aware of the problem.

To file a bug in Skia: https://bugs.chromium.org/p/skia/issues/entry
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

Author: skia-flutter-autoroll

DEPS

@@ -14,7 +14,7 @@ vars = {
   'flutter_git': 'https://flutter.googlesource.com',
   'skia_git': 'https://skia.googlesource.com',
   'llvm_git': 'https://llvm.googlesource.com',
-  'skia_revision': '4bbf2060b0087ef13e6e1a9fccf96fa52ec7082d',
+  'skia_revision': '12d0b7fac4c3ef624d93a3bac67d2d82adf039bc',
 
   # WARNING: DO NOT EDIT canvaskit_cipd_instance MANUALLY
   # See `lib/web_ui/README.md` for how to roll CanvasKit to a new version.

ci/licenses_golden/licenses_skia

@@ -1,4 +1,4 @@
-Signature: 9b4ade6f65dbd739cda9ce289fbb317c
+Signature: 974f887d1f8016f566202364b134913a
 
 ====================================================================================================
 LIBRARY: etc1
@@ -9508,6 +9508,7 @@ OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
 LIBRARY: skia
 ORIGIN: ../../../flutter/third_party/skia/gm/emptyshader.cpp + ../../../flutter/third_party/skia/LICENSE
 ORIGIN: ../../../flutter/third_party/skia/gm/imagedither.cpp + ../../../flutter/third_party/skia/LICENSE
+ORIGIN: ../../../flutter/third_party/skia/src/gpu/SwizzlePriv.h + ../../../flutter/third_party/skia/LICENSE
 ORIGIN: ../../../flutter/third_party/skia/src/gpu/graphite/RasterPathUtils.cpp + ../../../flutter/third_party/skia/LICENSE
 ORIGIN: ../../../flutter/third_party/skia/src/gpu/graphite/RasterPathUtils.h + ../../../flutter/third_party/skia/LICENSE
 ORIGIN: ../../../flutter/third_party/skia/src/gpu/graphite/SmallPathAtlas.cpp + ../../../flutter/third_party/skia/LICENSE
@@ -9518,6 +9519,7 @@ ORIGIN: ../../../flutter/third_party/skia/src/sksl/transform/SkSLFindAndDeclareB
 TYPE: LicenseType.bsd
 FILE: ../../../flutter/third_party/skia/gm/emptyshader.cpp
 FILE: ../../../flutter/third_party/skia/gm/imagedither.cpp
+FILE: ../../../flutter/third_party/skia/src/gpu/SwizzlePriv.h
 FILE: ../../../flutter/third_party/skia/src/gpu/graphite/RasterPathUtils.cpp
 FILE: ../../../flutter/third_party/skia/src/gpu/graphite/RasterPathUtils.h
 FILE: ../../../flutter/third_party/skia/src/gpu/graphite/SmallPathAtlas.cpp