clear container data on exit

app/lib/features/geckoview/features/tabs/data/database/daos/container.dart

@@ -193,4 +193,8 @@ class ContainerDao extends DatabaseAccessor<TabDatabase>
   Selectable<SiteAssignment> allAssignedSites() {
     return db.definitionsDrift.allAssignedSites();
   }
+
+  Selectable<String?> containersToClearOnExit() {
+    return db.definitionsDrift.containersToClearOnExit();
+  }
 }

app/lib/features/geckoview/features/tabs/data/database/definitions.drift

@@ -310,10 +310,17 @@ siteAssignedContainerId:
   );
 
 allAssignedSites WITH SiteAssignment:
-  SELECT 
+  SELECT
   	container.id,
-  	COALESCE(container.metadata ->> '$.contextualIdentity', 'general') AS contextualIdentity, 
+  	COALESCE(container.metadata ->> '$.contextualIdentity', 'general') AS contextualIdentity,
   	value AS assigned_site
   FROM container
   CROSS JOIN json_each(container.metadata, '$.assignedSites')
   WHERE value IS NOT NULL;
+
+containersToClearOnExit:
+  SELECT container.metadata ->> '$.contextualIdentity' AS contextual_identity
+  FROM container
+  WHERE
+    json_extract(container.metadata, '$.clearDataOnExit') = 1
+    AND container.metadata ->> '$.contextualIdentity' IS NOT NULL;

app/lib/features/geckoview/features/tabs/data/database/definitions.drift.dart

@@ -2383,6 +2383,14 @@ class DefinitionsDrift extends i7.ModularAccessor {
     );
   }
 
+  i0.Selectable<String?> containersToClearOnExit() {
+    return customSelect(
+      'SELECT container.metadata ->> \'\$.contextualIdentity\' AS contextual_identity FROM container WHERE json_extract(container.metadata, \'\$.clearDataOnExit\') = 1 AND container.metadata ->> \'\$.contextualIdentity\' IS NOT NULL',
+      variables: [],
+      readsFrom: {container},
+    ).map((i0.QueryRow row) => row.readNullable<String>('contextual_identity'));
+  }
+
   i3.TabFts get tabFts => i7.ReadDatabaseContainer(
     attachedDatabase,
   ).resultSet<i3.TabFts>('tab_fts');

app/lib/features/geckoview/features/tabs/data/models/container_data.dart

@@ -73,6 +73,9 @@ class ContainerMetadata with FastEquatable {
   @JsonKey(defaultValue: false)
   final bool useProxy;
 
+  @JsonKey(defaultValue: false)
+  final bool clearDataOnExit;
+
   final List<Uri>? assignedSites;
 
   ContainerMetadata({
@@ -80,6 +83,7 @@ class ContainerMetadata with FastEquatable {
     required this.contextualIdentity,
     required this.authSettings,
     required this.useProxy,
+    required this.clearDataOnExit,
     required this.assignedSites,
   });
 
@@ -88,12 +92,14 @@ class ContainerMetadata with FastEquatable {
     String? contextualIdentity,
     ContainerAuthSettings? authSettings,
     bool? useProxy,
+    bool? clearDataOnExit,
     List<Uri>? assignedSites,
   }) : this(
          iconData: iconData,
          contextualIdentity: contextualIdentity,
          authSettings: authSettings ?? ContainerAuthSettings.withDefaults(),
          useProxy: useProxy ?? false,
+         clearDataOnExit: clearDataOnExit ?? false,
          assignedSites: assignedSites,
        );
 
@@ -108,6 +114,7 @@ class ContainerMetadata with FastEquatable {
     contextualIdentity,
     authSettings,
     useProxy,
+    clearDataOnExit,
     assignedSites,
   ];
 }

app/lib/features/geckoview/features/tabs/data/models/container_data.g.dart

@@ -98,6 +98,8 @@ abstract class _$ContainerMetadataCWProxy {
 
   ContainerMetadata useProxy(bool useProxy);
 
+  ContainerMetadata clearDataOnExit(bool clearDataOnExit);
+
   ContainerMetadata assignedSites(List<Uri>? assignedSites);
 
   /// Creates a new instance with the provided field values.
@@ -112,6 +114,7 @@ abstract class _$ContainerMetadataCWProxy {
     String? contextualIdentity,
     ContainerAuthSettings authSettings,
     bool useProxy,
+    bool clearDataOnExit,
     List<Uri>? assignedSites,
   });
 }
@@ -137,6 +140,10 @@ class _$ContainerMetadataCWProxyImpl implements _$ContainerMetadataCWProxy {
   @override
   ContainerMetadata useProxy(bool useProxy) => call(useProxy: useProxy);
 
+  @override
+  ContainerMetadata clearDataOnExit(bool clearDataOnExit) =>
+      call(clearDataOnExit: clearDataOnExit);
+
   @override
   ContainerMetadata assignedSites(List<Uri>? assignedSites) =>
       call(assignedSites: assignedSites);
@@ -154,6 +161,7 @@ class _$ContainerMetadataCWProxyImpl implements _$ContainerMetadataCWProxy {
     Object? contextualIdentity = const $CopyWithPlaceholder(),
     Object? authSettings = const $CopyWithPlaceholder(),
     Object? useProxy = const $CopyWithPlaceholder(),
+    Object? clearDataOnExit = const $CopyWithPlaceholder(),
     Object? assignedSites = const $CopyWithPlaceholder(),
   }) {
     return ContainerMetadata(
@@ -174,6 +182,12 @@ class _$ContainerMetadataCWProxyImpl implements _$ContainerMetadataCWProxy {
           ? _value.useProxy
           // ignore: cast_nullable_to_non_nullable
           : useProxy as bool,
+      clearDataOnExit:
+          clearDataOnExit == const $CopyWithPlaceholder() ||
+              clearDataOnExit == null
+          ? _value.clearDataOnExit
+          // ignore: cast_nullable_to_non_nullable
+          : clearDataOnExit as bool,
       assignedSites: assignedSites == const $CopyWithPlaceholder()
           ? _value.assignedSites
           // ignore: cast_nullable_to_non_nullable
@@ -311,6 +325,7 @@ ContainerMetadata _$ContainerMetadataFromJson(Map<String, dynamic> json) =>
               json['authSettings'] as Map<String, dynamic>,
             ),
       useProxy: json['useProxy'] as bool? ?? false,
+      clearDataOnExit: json['clearDataOnExit'] as bool? ?? false,
       assignedSites: (json['assignedSites'] as List<dynamic>?)
           ?.map((e) => Uri.parse(e as String))
           .toList(),
@@ -326,6 +341,7 @@ Map<String, dynamic> _$ContainerMetadataToJson(
   'contextualIdentity': instance.contextualIdentity,
   'authSettings': instance.authSettings.toJson(),
   'useProxy': instance.useProxy,
+  'clearDataOnExit': instance.clearDataOnExit,
   'assignedSites': instance.assignedSites?.map((e) => e.toString()).toList(),
 };