Roll src/third_party/dart f144d5fdca56..1e4a56ee7202 (20 commits) (#17510)

DEPS

@@ -34,7 +34,7 @@ vars = {
   # Dart is: https://github.com/dart-lang/sdk/blob/master/DEPS.
   # You can use //tools/dart/create_updated_flutter_deps.py to produce
   # updated revision list of existing dependencies.
-  'dart_revision': 'f144d5fdca56e53b80f858140620982aec7e2eea',
+  'dart_revision': '1e4a56ee720218ae82af13a9cf71e038b0884cfc',
 
   # WARNING: DO NOT EDIT MANUALLY
   # The lines between blank lines above and below are generated by a script. See create_updated_flutter_deps.py

ci/licenses_golden/licenses_third_party

-Signature: 68c93925c73188171c45b4ad5b310f0c
+Signature: 87054d758bd439e5e2fa3d34486c7ed0
 
 UNUSED LICENSES:
 
@@ -7796,11 +7796,9 @@ FILE: ../../../third_party/dart/runtime/vm/visitor.cc
 FILE: ../../../third_party/dart/samples/ffi/async/async_test.dart
 FILE: ../../../third_party/dart/samples/ffi/async/sample_async_callback.dart
 FILE: ../../../third_party/dart/samples/ffi/async/sample_native_port_call.dart
-FILE: ../../../third_party/dart/sdk/lib/_http/embedder_config.dart
 FILE: ../../../third_party/dart/sdk/lib/_internal/js_dev_runtime/patch/js_patch.dart
 FILE: ../../../third_party/dart/sdk/lib/_internal/js_runtime/lib/js_patch.dart
 FILE: ../../../third_party/dart/sdk/lib/_internal/vm/lib/ffi_struct_patch.dart
-FILE: ../../../third_party/dart/sdk_nnbd/lib/_http/embedder_config.dart
 FILE: ../../../third_party/dart/sdk_nnbd/lib/_internal/js_dev_runtime/patch/js_patch.dart
 FILE: ../../../third_party/dart/sdk_nnbd/lib/_internal/js_runtime/lib/js_patch.dart
 FILE: ../../../third_party/dart/sdk_nnbd/lib/_internal/vm/lib/ffi_struct_patch.dart