[rb] missed adding the HasCasting class

rb/lib/selenium/webdriver/chrome/features.rb

@@ -44,19 +44,19 @@ def cast_sinks
         end
 
         def cast_sink_to_use=(name)
-          execute :set_cast_sink_to_use, {}, {'sinkName' => name}
+          execute :set_cast_sink_to_use, {}, {sinkName: name}
         end
 
         def cast_issue_message
           execute :cast_issue_message
         end
 
         def start_cast_tab_mirroring(name)
-          execute :start_cast_tab_mirroring, {}, {'sinkName' => name}
+          execute :start_cast_tab_mirroring, {}, {sinkName: name}
         end
 
         def stop_casting(name)
-          execute :stop_casting, {}, {'sinkName' => name}
+          execute :stop_casting, {}, {sinkName: name}
         end
 
         def network_conditions

rb/lib/selenium/webdriver/common/driver_extensions/has_casting.rb

@@ -0,0 +1,47 @@
+# frozen_string_literal: true
+
+# Licensed to the Software Freedom Conservancy (SFC) under one
+# or more contributor license agreements.  See the NOTICE file
+# distributed with this work for additional information
+# regarding copyright ownership.  The SFC licenses this file
+# to you under the Apache License, Version 2.0 (the
+# "License"); you may not use this file except in compliance
+# with the License.  You may obtain a copy of the License at
+#
+#   http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing,
+# software distributed under the License is distributed on an
+# "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
+# KIND, either express or implied.  See the License for the
+# specific language governing permissions and limitations
+# under the License.
+
+module Selenium
+  module WebDriver
+    module DriverExtensions
+      module HasCasting
+
+        def cast_sinks
+          @bridge.cast_sinks
+        end
+
+        def cast_sink_to_use=(name)
+          @bridge.cast_sink_to_use = name
+        end
+
+        def start_cast_tab_mirroring(name)
+          @bridge.start_cast_tab_mirroring(name)
+        end
+
+        def cast_issue_message
+          @bridge.cast_issue_message
+        end
+
+        def stop_casting(name)
+          @bridge.stop_casting(name)
+        end
+      end # HasCasting
+    end # DriverExtensions
+  end # WebDriver
+end # Selenium