Add fix for RectangularSliderTrackShape (#78658)

packages/flutter/lib/fix_data.yaml

@@ -12,6 +12,17 @@
 version: 1
 transforms:
 
+  # Changes made in https://github.com/flutter/flutter/pull/65246
+  - title: "Remove 'disabledThumbGapWidth'"
+    date: 2020-11-17
+    element:
+      uris: [ 'material.dart' ]
+      constructor: ''
+      inClass: 'RectangularSliderTrackShape'
+    changes:
+      - kind: 'removeParameter'
+        name: 'disabledThumbGapWidth'
+
   # Changes made in https://github.com/flutter/flutter/pull/46115
   - title: "Migrate to 'floatingLabelBehavior'"
     date: 2020-01-15

packages/flutter/test_fixes/material.dart

@@ -179,6 +179,9 @@ void main() {
   const BottomNavigationBarItem bottomNavigationBarItem = BottomNavigationBarItem(title: myTitle);
   bottomNavigationBarItem.title;
 
+  // Changes made in https://github.com/flutter/flutter/pull/65246
+  RectangularSliderTrackShape(disabledThumbGapWidth: 2.0);
+
   // Changes made in https://github.com/flutter/flutter/pull/46115
   const InputDecoration inputDecoration = InputDecoration(hasFloatingPlaceholder: true);
   InputDecoration(hasFloatingPlaceholder: false);
@@ -191,6 +194,4 @@ void main() {
   InputDecorationTheme(hasFloatingPlaceholder: false);
   InputDecorationTheme();
   inputDecorationTheme.hasFloatingPlaceholder;
-
-
 }

packages/flutter/test_fixes/material.dart.expect

@@ -179,6 +179,9 @@ void main() {
   const BottomNavigationBarItem bottomNavigationBarItem = BottomNavigationBarItem(label: myTitle);
   bottomNavigationBarItem.label;
 
+  // Changes made in https://github.com/flutter/flutter/pull/65246
+  RectangularSliderTrackShape();
+
   // Changes made in https://github.com/flutter/flutter/pull/46115
   const InputDecoration inputDecoration = InputDecoration(floatingLabelBehavior: FloatingLabelBehavior.auto);
   InputDecoration(floatingLabelBehavior: FloatingLabelBehavior.never);