Revert "Roll Dart SDK from 88473a3b63ff to a55712b2de3f (0 revision) (#37973)" (#37982)

This reverts commit 94bed734c9aeff03807cac9e37b7a858d1e7517d.
diff --git a/DEPS b/DEPS
index 6b339da..5cb5e2a 100644
--- a/DEPS
+++ b/DEPS
@@ -48,7 +48,7 @@
   # 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': 'a55712b2de3ff434081f796f6c046a0d172ac621',
+  'dart_revision': '88473a3b63ffca1c917f138362e3fe907cca89ba',
 
   # WARNING: DO NOT EDIT MANUALLY
   # The lines between blank lines above and below are generated by a script. See create_updated_flutter_deps.py
@@ -58,9 +58,9 @@
   'dart_browser_launcher_rev': '5fa0bd6cddc33785f43c920576fc03dcee1c3caa',
   'dart_clock_rev': '8a8231fa7912d84c7e99236b7800cfbef5ea7ae5',
   'dart_collection_rev': 'efd709fc1760a595f8575f4137a1847de1b49d76',
-  'dart_devtools_rev': '23444af89d716818f099974df3e4fffac87fd886',
-  'dart_protobuf_rev': 'ae90e53cd690edbfc72fa6c293fdb7b4a09ee0a2',
-  'dart_pub_rev': '6fdcdd4357645817e7d7027ee2157ed68ef69c53',
+  'dart_devtools_rev': 'dd3fade2bd2ef74fc6102e56333a48f0efc594d3',
+  'dart_protobuf_rev': 'c181573c330ff0337db0bab5501deda3a42ba028',
+  'dart_pub_rev': '867ad175d81713c4e70473b1ab32107547cbdc3e',
   'dart_root_certificates_rev': '692f6d6488af68e0121317a9c2c9eb393eb0ee50',
   'dart_watcher_rev': '32591071a83f632478e702f67e29de6e54428ce9',
   'dart_webdev_rev': '637b406f325669507b5c1048c19a7c0083c1bd6e',
@@ -301,7 +301,7 @@
    Var('chromium_git') + '/external/github.com/WebAssembly/binaryen.git@ec53f4b2d5b0d52ae703c5b696ecf052ad5fffbb',
 
   'src/third_party/dart/third_party/devtools':
-   {'packages': [{'version': 'git_revision:23444af89d716818f099974df3e4fffac87fd886', 'package': 'dart/third_party/flutter/devtools'}], 'dep_type': 'cipd'},
+   {'packages': [{'version': 'git_revision:dd3fade2bd2ef74fc6102e56333a48f0efc594d3', 'package': 'dart/third_party/flutter/devtools'}], 'dep_type': 'cipd'},
 
   'src/third_party/dart/third_party/pkg/args':
    Var('dart_git') + '/args.git@da037acc018a8dd267d109eb634454490b7ff759',
@@ -343,7 +343,7 @@
    Var('dart_git') + '/dartdoc.git@dc502d0862fe1ba8451c9c57cd7ab70432634af3',
 
   'src/third_party/dart/third_party/pkg/ffi':
-   Var('dart_git') + '/ffi.git@3ede2312dd6ec37db6e7bcd6e1236647f72c7fc0',
+   Var('dart_git') + '/ffi.git@17a8142da8114a065e03200467c7657b5368a86d',
 
   'src/third_party/dart/third_party/pkg/file':
    Var('dart_git') + '/external/github.com/google/file.dart@b768f79dcd104a5feabafab47101c4355b71cd8f',
@@ -358,7 +358,7 @@
    Var('dart_git') + '/html.git@28fb8b97acf471bedcfa4eaf38899a0f65d5e30d',
 
   'src/third_party/dart/third_party/pkg/http':
-   Var('dart_git') + '/http.git@d56141de40b69e8ae3cc22602caea6cca3fba4dc',
+   Var('dart_git') + '/http.git@047d6ed015d397be169a7fb892d75141d9bfd58f',
 
   'src/third_party/dart/third_party/pkg/http_multi_server':
    Var('dart_git') + '/http_multi_server.git@e31c6988e3869fb4019429254604066338f86095',
@@ -379,7 +379,7 @@
    Var('dart_git') + '/logging.git@f322480fb9d9e83e677c08db6d09067059f7ff74',
 
   'src/third_party/dart/third_party/pkg/markdown':
-   Var('dart_git') + '/markdown.git@37951d151750acfae756b2e466f563c1c5119b3d',
+   Var('dart_git') + '/markdown.git@ee3f4e976efcfed87c6ec78364bc2dd3c6e717b9',
 
   'src/third_party/dart/third_party/pkg/matcher':
    Var('dart_git') + '/matcher.git@15d4af21002ae9adee952110192a3face96307c7',
@@ -406,7 +406,7 @@
    Var('dart_git') + '/pub.git' + '@' + Var('dart_pub_rev'),
 
   'src/third_party/dart/third_party/pkg/pub_semver':
-   Var('dart_git') + '/pub_semver.git@28159b8c5b96fc2709d0904389d7932880f68659',
+   Var('dart_git') + '/pub_semver.git@17231113f98c80285881cc4452863bcfd085d1a8',
 
   'src/third_party/dart/third_party/pkg/shelf':
    Var('dart_git') + '/shelf.git@1c2104737973715426035c11ba840c7f23d8f186',
@@ -421,7 +421,7 @@
    Var('dart_git') + '/source_span.git@d1d47e550b6f77ed9b4907339a8a5e430b9ca314',
 
   'src/third_party/dart/third_party/pkg/sse':
-   Var('dart_git') + '/sse.git@283568dd4865cc51e25370ed107fcbdb68759c22',
+   Var('dart_git') + '/sse.git@8d018dd606f1f8a957c51de16159d532ce664569',
 
   'src/third_party/dart/third_party/pkg/stack_trace':
    Var('dart_git') + '/stack_trace.git@dce00134f6558086e8963e37d0b1ba0830862c01',
@@ -436,7 +436,7 @@
    Var('dart_git') + '/term_glyph.git@822cd5b3418615c6db715a796c2c9ba9acb63b0d',
 
   'src/third_party/dart/third_party/pkg/test':
-   Var('dart_git') + '/test.git@7756833000d671d4540b37ef04acd4b9e716026f',
+   Var('dart_git') + '/test.git@b25dac9936c2ea9605b54a3418e0c956937da48f',
 
   'src/third_party/dart/third_party/pkg/test_reflective_loader':
    Var('dart_git') + '/test_reflective_loader.git@52b6753852661787208e003f9716b079026c7ac7',
@@ -466,7 +466,7 @@
    Var('dart_git') + '/yaml_edit.git' + '@' + Var('dart_yaml_edit_rev'),
 
   'src/third_party/dart/tools/sdks':
-   {'packages': [{'version': 'version:2.18.0', 'package': 'dart/dart-sdk/${{platform}}'}], 'dep_type': 'cipd'},
+   {'packages': [{'version': 'version:2.19.0-374.0.dev', 'package': 'dart/dart-sdk/${{platform}}'}], 'dep_type': 'cipd'},
 
   # WARNING: end of dart dependencies list that is cleaned up automatically - see create_updated_flutter_deps.py.
 
diff --git a/ci/licenses_golden/licenses_third_party b/ci/licenses_golden/licenses_third_party
index e3c9ad6..bd78797 100644
--- a/ci/licenses_golden/licenses_third_party
+++ b/ci/licenses_golden/licenses_third_party
@@ -1,4 +1,4 @@
-Signature: 87aaf287f708f053279da619a12c50c7
+Signature: 6439191c4c82da53777e46e18345107e
 
 UNUSED LICENSES:
 
diff --git a/sky/packages/sky_engine/LICENSE b/sky/packages/sky_engine/LICENSE
index 6df32e9..2eddab3 100644
--- a/sky/packages/sky_engine/LICENSE
+++ b/sky/packages/sky_engine/LICENSE
@@ -7197,28 +7197,6 @@
 (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
 OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
 --------------------------------------------------------------------------------
-web_locale_keymap
-
-Copyright (c) 2022 Google LLC
-
-Permission is hereby granted, free of charge, to any person obtaining a copy
-of this software and associated documentation files (the "Software"), to deal
-in the Software without restriction, including without limitation the rights
-to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
-copies of the Software, and to permit persons to whom the Software is
-furnished to do so, subject to the following conditions:
-
-The above copyright notice and this permission notice shall be included in all
-copies or substantial portions of the Software.
-
-THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
-IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
-FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
-AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
-LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
-OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
-SOFTWARE.
---------------------------------------------------------------------------------
 zlib
 
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