Roll Skia from 26a84431ff72 to bde06cc511d2 (12 revisions) (flutter#23766)

https://skia.googlesource.com/skia.git/+log/26a84431ff72..bde06cc511d2

2021-01-19 [email protected] [svg] Cleanup: drop the presentation attribute SkPaint cache
2021-01-19 [email protected] Avoid division by zero when shaping.
2021-01-19 [email protected] Revert "Test all YUVA image factories with different encoded origins."
2021-01-19 [email protected] Add query to test our cached convexity
2021-01-19 [email protected] Roll ANGLE from 68635b431b3c to 81430e11c81e (12 revisions)
2021-01-19 [email protected] Roll SwiftShader from 149733cead63 to 8da0f82baf35 (2 revisions)
2021-01-19 [email protected] Roll Chromium from 1d3066a6e2ec to 00da91bbde3d (227 revisions)
2021-01-19 [email protected] Roll Dawn from 04772515a8b6 to e45593cb0876 (4 revisions)
2021-01-18 [email protected] Remove legacy code from picture-shader
2021-01-18 [email protected] Roll SwiftShader from aedd133cd85f to 149733cead63 (2 revisions)
2021-01-18 [email protected] Roll ANGLE from 50c82f42e33f to 68635b431b3c (24 revisions)
2021-01-18 [email protected] Roll Chromium from e330bc98d133 to 1d3066a6e2ec (498 revisions)

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 [email protected] on the revert to ensure that a human
is aware of the problem.

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/master/autoroll/README.md

Author: skia-flutter-autoroll

DEPS

@@ -27,7 +27,7 @@ vars = {
   'skia_git': 'https://skia.googlesource.com',
   # OCMock is for testing only so there is no google clone
   'ocmock_git': 'https://github.com/erikdoe/ocmock.git',
-  'skia_revision': '26a84431ff7266f6b4d15af5e50b493592890ec4',
+  'skia_revision': 'bde06cc511d268409bfd624a18725b7afaa7617e',
 
   # 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

@@ -1,4 +1,4 @@
-Signature: 4472444fa91ff0876bed5aa88fa49822
+Signature: 0b680937f7c59a23d1174d0f5d64b729
 
 UNUSED LICENSES: