temporary workaround

Author: Emmanuel Garcia

testing/scenario_app/android/app/src/main/java/dev/flutter/scenarios/TextPlatformView.java

@@ -6,6 +6,7 @@
 
 import android.content.Context;
 import android.graphics.Color;
+import android.view.Choreographer;
 import android.view.View;
 import android.widget.TextView;
 import androidx.annotation.NonNull;
@@ -21,6 +22,16 @@ public class TextPlatformView implements PlatformView {
     textView.setTextSize(72);
     textView.setBackgroundColor(Color.rgb(255, 255, 255));
     textView.setText(params);
+
+    // Investigate why this is needed to make some gold tests pass.
+    Choreographer.getInstance()
+        .postFrameCallback(
+            new Choreographer.FrameCallback() {
+              @Override
+              public void doFrame(long frameTimeNanos) {
+                textView.invalidate();
+              }
+            });
   }
 
   @Override