Add browser_launcher and webkit_inspection_protocol packages (#28252)

DEPS

@@ -45,6 +45,7 @@ vars = {
   # The lines between blank lines above and below are generated by a script. See create_updated_flutter_deps.py
   'dart_boringssl_gen_rev': '7322fc15cc065d8d2957fccce6b62a509dc4d641',
   'dart_boringssl_rev': '1607f54fed72c6589d560254626909a64124f091',
+  'dart_browser_launcher_rev': 'c6cc1025d6901926cf022e144ba109677e3548f1',
   'dart_clock_rev': 'a494269254ba978e7ef8f192c5f7fec3fc05b9d3',
   'dart_collection_rev': '75a7a5510979a3cd70143af85bcc1667ee233674',
   'dart_devtools_rev': '2b47d9ed486479153ca2fd038000950674ed1beb',
@@ -62,6 +63,7 @@ vars = {
   'dart_stream_channel_tag': 'd7251e61253ec389ee6e045ee1042311bced8f1d',
   'dart_watcher_rev': '3924194385fb215cef483193ed2879a618a3d69c',
   'dart_webdev_rev': '832b096c0c24798d3df46faa7b7661fe930573c2',
+  'dart_webkit_inspection_protocol_rev': 'dd6fb5d8b536e19cedb384d0bbf1f5631923f1e8',
 
   'ocmock_tag': 'v3.7.1',
 
@@ -186,6 +188,9 @@ deps = {
   'src/third_party/dart/third_party/pkg/boolean_selector':
    Var('dart_git') + '/boolean_selector.git@665e6921ab246569420376f827bff4585dff0b14',
 
+  'src/third_party/dart/third_party/pkg/browser_launcher':
+   Var('dart_git') + '/browser_launcher.git' + '@' + Var('dart_browser_launcher_rev'),
+
   'src/third_party/dart/third_party/pkg/charcode':
    Var('dart_git') + '/charcode.git@84ea427711e24abf3b832923959caa7dd9a8514b',
 
@@ -345,6 +350,9 @@ deps = {
   'src/third_party/dart/third_party/pkg/webdev':
    Var('dart_git') + '/webdev.git' + '@' + Var('dart_webdev_rev'),
 
+  'src/third_party/dart/third_party/pkg/webkit_inspection_protocol':
+   Var('dart_git') + '/external/github.com/google/webkit_inspection_protocol.dart.git' + '@' + Var('dart_webkit_inspection_protocol_rev'),
+
   'src/third_party/dart/third_party/pkg/yaml':
    Var('dart_git') + '/yaml.git@b4c4411631bda556ce9a45af1ab0eecaf9f3ac53',