Roll Skia from 1a1c7db436e4 to d6149a13d696 (6 revisions) (flutter#41779)

https://skia.googlesource.com/skia.git/+log/1a1c7db436e4..d6149a13d696

2023-05-05 johnstiles@google.com Parse statements without using DSLCore.
2023-05-05 johnstiles@google.com Parse for statements without using DSLCore.
2023-05-05 michaelludwig@google.com [skif] Remove use of deprecated Magnifier factory within Skia
2023-05-05 jamesgk@google.com [graphite] Dst reads using copies
2023-05-05 johnstiles@google.com Remove ThreadContext::SymbolTable.
2023-05-05 johnstiles@google.com Move the active symbol table into the SkSL::Context.

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,bungeman@google.com,jimgraham@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://bugs.chromium.org/p/skia/issues/entry?template=Autoroller+Bug

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

Author: skia-flutter-autoroll

DEPS

@@ -18,7 +18,7 @@ vars = {
   'llvm_git': 'https://llvm.googlesource.com',
   # OCMock is for testing only so there is no google clone
   'ocmock_git': 'https://github.com/erikdoe/ocmock.git',
-  'skia_revision': '1a1c7db436e44cb480ed10dc823f8a522bf3c17e',
+  'skia_revision': 'd6149a13d696c2c7d420f1f36032286a6cc5c685',
 
   # 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: b6ee32fd4cf38571274ccfdf8135a358
+Signature: 27f17a538eb72fc88238f37ed1725e7a
 
 ====================================================================================================
 LIBRARY: etc1
@@ -4566,7 +4566,6 @@ ORIGIN: ../../../third_party/skia/gm/pictureshadercache.cpp + ../../../third_par
 ORIGIN: ../../../third_party/skia/gm/radial_gradient_precision.cpp + ../../../third_party/skia/LICENSE
 ORIGIN: ../../../third_party/skia/gm/savelayer.cpp + ../../../third_party/skia/LICENSE
 ORIGIN: ../../../third_party/skia/gm/shadowutils.cpp + ../../../third_party/skia/LICENSE
-ORIGIN: ../../../third_party/skia/gm/simple_magnification.cpp + ../../../third_party/skia/LICENSE
 ORIGIN: ../../../third_party/skia/gm/srgb.cpp + ../../../third_party/skia/LICENSE
 ORIGIN: ../../../third_party/skia/gm/testgradient.cpp + ../../../third_party/skia/LICENSE
 ORIGIN: ../../../third_party/skia/gm/text_scale_skew.cpp + ../../../third_party/skia/LICENSE
@@ -4795,7 +4794,6 @@ FILE: ../../../third_party/skia/gm/pictureshadercache.cpp
 FILE: ../../../third_party/skia/gm/radial_gradient_precision.cpp
 FILE: ../../../third_party/skia/gm/savelayer.cpp
 FILE: ../../../third_party/skia/gm/shadowutils.cpp
-FILE: ../../../third_party/skia/gm/simple_magnification.cpp
 FILE: ../../../third_party/skia/gm/srgb.cpp
 FILE: ../../../third_party/skia/gm/testgradient.cpp
 FILE: ../../../third_party/skia/gm/text_scale_skew.cpp