Revert "Roll Dart SDK from 1679aba20a03 to 0ecada960645 (1 revision) (flutter#53767)"

This reverts commit 14e0ac6.

Author: bdero

DEPS

@@ -56,7 +56,7 @@ vars = {
   # Dart is: https://github.com/dart-lang/sdk/blob/main/DEPS
   # You can use //tools/dart/create_updated_flutter_deps.py to produce
   # updated revision list of existing dependencies.
-  'dart_revision': '0ecada960645274748af46abfea7586bbe52b519',
+  'dart_revision': '1679aba20a032d26f337eb987bd5ae03bec099cb',
 
   # WARNING: DO NOT EDIT MANUALLY
   # The lines between blank lines above and below are generated by a script. See create_updated_flutter_deps.py
@@ -434,7 +434,7 @@ deps = {
    Var('dart_git') + '/mockito.git@a7fdf7101fbd31132a59188a6057d21004345927',
 
   'src/flutter/third_party/dart/third_party/pkg/native':
-   Var('dart_git') + '/native.git@cd8eddf8ad5b953127acf884f2b8a614482a8b0f',
+   Var('dart_git') + '/native.git@fcc783c1d2777555616dfc850f131878ea5d88a9',
 
   'src/flutter/third_party/dart/third_party/pkg/package_config':
    Var('dart_git') + '/package_config.git@903a0e528f91aef90821c8f5eaafbc1ae27198ab',

ci/licenses_golden/licenses_dart

@@ -1,4 +1,4 @@
-Signature: dfb9b80726f1345b5909ee445b9a6bd0
+Signature: cdf0a0115b34b2592fab6d9570fce532
 
 ====================================================================================================
 LIBRARY: dart
@@ -4757,7 +4757,7 @@ Exhibit B - "Incompatible With Secondary Licenses" Notice
   This Source Code Form is "Incompatible With Secondary Licenses", as
   defined by the Mozilla Public License, v. 2.0.
 
-You may obtain a copy of this library's Source Code Form from: https://dart.googlesource.com/sdk/+/0ecada960645274748af46abfea7586bbe52b519
+You may obtain a copy of this library's Source Code Form from: https://dart.googlesource.com/sdk/+/1679aba20a032d26f337eb987bd5ae03bec099cb
 /third_party/fallback_root_certificates/
 
 ====================================================================================================

sky/packages/sky_engine/LICENSE

@@ -31897,7 +31897,7 @@ Exhibit B - "Incompatible With Secondary Licenses" Notice
   This Source Code Form is "Incompatible With Secondary Licenses", as
   defined by the Mozilla Public License, v. 2.0.
 
-You may obtain a copy of this library's Source Code Form from: https://dart.googlesource.com/sdk/+/0ecada960645274748af46abfea7586bbe52b519
+You may obtain a copy of this library's Source Code Form from: https://dart.googlesource.com/sdk/+/1679aba20a032d26f337eb987bd5ae03bec099cb
 /third_party/fallback_root_certificates/
 
 --------------------------------------------------------------------------------