pipe gecko logs to flutter

packages/flutter_mozilla_components/lib/src/domain/services/gecko_logging.dart

@@ -0,0 +1,29 @@
+/*
+ * This Source Code Form is subject to the terms of the Mozilla Public
+ * License, v. 2.0. If a copy of the MPL was not distributed with this
+ * file, You can obtain one at https://mozilla.org/MPL/2.0/.
+ */
+
+import 'package:flutter/services.dart';
+import 'package:flutter_mozilla_components/src/pigeons/gecko.g.dart';
+
+class GeckoLoggingService extends GeckoLogging {
+  final void Function(LogLevel level, String message) handleLog;
+
+  GeckoLoggingService.setUp(
+    this.handleLog, {
+    BinaryMessenger? binaryMessenger,
+    String messageChannelSuffix = '',
+  }) {
+    GeckoLogging.setUp(
+      this,
+      binaryMessenger: binaryMessenger,
+      messageChannelSuffix: messageChannelSuffix,
+    );
+  }
+
+  @override
+  void onLog(LogLevel level, String message) {
+    handleLog(level, message);
+  }
+}

packages/flutter_mozilla_components/lib/src/pigeons/gecko.g.dart

@@ -4753,6 +4753,44 @@ abstract class GeckoStateEvents {
   }
 }
 
+abstract class GeckoLogging {
+  static const MessageCodec<Object?> pigeonChannelCodec = _PigeonCodec();
+
+  void onLog(LogLevel level, String message);
+
+  static void setUp(GeckoLogging? api, {BinaryMessenger? binaryMessenger, String messageChannelSuffix = '',}) {
+    messageChannelSuffix = messageChannelSuffix.isNotEmpty ? '.$messageChannelSuffix' : '';
+    {
+      final BasicMessageChannel<Object?> pigeonVar_channel = BasicMessageChannel<Object?>(
+          'dev.flutter.pigeon.flutter_mozilla_components.GeckoLogging.onLog$messageChannelSuffix', pigeonChannelCodec,
+          binaryMessenger: binaryMessenger);
+      if (api == null) {
+        pigeonVar_channel.setMessageHandler(null);
+      } else {
+        pigeonVar_channel.setMessageHandler((Object? message) async {
+          assert(message != null,
+          'Argument for dev.flutter.pigeon.flutter_mozilla_components.GeckoLogging.onLog was null.');
+          final List<Object?> args = (message as List<Object?>?)!;
+          final LogLevel? arg_level = (args[0] as LogLevel?);
+          assert(arg_level != null,
+              'Argument for dev.flutter.pigeon.flutter_mozilla_components.GeckoLogging.onLog was null, expected non-null LogLevel.');
+          final String? arg_message = (args[1] as String?);
+          assert(arg_message != null,
+              'Argument for dev.flutter.pigeon.flutter_mozilla_components.GeckoLogging.onLog was null, expected non-null String.');
+          try {
+            api.onLog(arg_level!, arg_message!);
+            return wrapResponse(empty: true);
+          } on PlatformException catch (e) {
+            return wrapResponse(error: e);
+          }          catch (e) {
+            return wrapResponse(error: PlatformException(code: 'error', message: e.toString()));
+          }
+        });
+      }
+    }
+  }
+}
+
 class ReaderViewEvents {
   /// Constructor for [ReaderViewEvents].  The [binaryMessenger] named argument is
   /// available for dependency injection.  If it is left null, the default