Roll Dart SDK from 7a2a3968ef53 to e9a03fd98faa (5 revisions) (#22801)

diff --git a/DEPS b/DEPS
index 2572db7..36d7fb5 100644
--- a/DEPS
+++ b/DEPS
@@ -34,7 +34,7 @@
   # 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': '7a2a3968ef53a46ca7c512257a449ea1319e74f2',
+  'dart_revision': 'e9a03fd98faab291d439f4a2ebfc307830ce99b3',
 
   # WARNING: DO NOT EDIT MANUALLY
   # The lines between blank lines above and below are generated by a script. See create_updated_flutter_deps.py
@@ -47,7 +47,7 @@
   'dart_http_retry_tag': '0.1.1',
   'dart_http_throttle_tag': '1.0.2',
   'dart_intl_tag': '0.17.0-nullsafety',
-  'dart_linter_tag': '0.1.125',
+  'dart_linter_tag': '0.1.126',
   'dart_oauth2_tag': '1.6.0',
   'dart_protobuf_rev': '0d03fd588df69e9863e2a2efc0059dee8f18d5b2',
   'dart_pub_rev': '228e69e53862879c283c42b98086aa7536012a66',
@@ -197,15 +197,15 @@
 
   'src/third_party/dart/third_party/pkg/ffi':
    Var('dart_git') + '/ffi.git@a5d4232cd38562c75a3ed847baa340e399538028',
-  
+
   'src/third_party/dart/third_party/pkg/file':
-   Var("dart_git") + '/file.dart.git@0e09370f581ab6388d46fda4cdab66638c0171a1',
+   Var('dart_git') + '/external/github.com/google/file.dart/@0e09370f581ab6388d46fda4cdab66638c0171a1',
 
   'src/third_party/dart/third_party/pkg/fixnum':
    Var('dart_git') + '/fixnum.git@16d3890c6dc82ca629659da1934e412292508bba',
 
   'src/third_party/dart/third_party/pkg/glob':
-   Var('dart_git') + '/glob.git@e9f4e6b7ae8abe5071461cf8f47191bb19cf7ef6',
+   Var('dart_git') + '/glob.git@7c0ef8d4fa086f6b185c4dd724b700e7d7ad8f79',
 
   'src/third_party/dart/third_party/pkg/html':
    Var('dart_git') + '/html.git@22f17e97fedeacaa1e945cf84d8016284eed33a6',
diff --git a/ci/licenses_golden/licenses_third_party b/ci/licenses_golden/licenses_third_party
index f2a0c04..0ff9293 100644
--- a/ci/licenses_golden/licenses_third_party
+++ b/ci/licenses_golden/licenses_third_party
@@ -1,4 +1,4 @@
-Signature: 85c298b5b793c191eae07f14f4ee41fc
+Signature: 812588dc47538028e0c244e958abbfdb
 
 UNUSED LICENSES: