Perf issue on OnePlus+; Android One doesn't do the clip oval at all

main.dart

// Copy this over main.dart in Stocks

// Build app:
// adb uninstall org.domokit.stocks; ninja -C out/android_Release/; adb install -r out/android_Release/apks/Stocks.apk

// Get trace:
// ninja -C out/android_Release/; adb install -r out/android_Debug/apks/Stocks.apk; mkdir tmp; rm tmp/*; adb shell run-as org.domokit.stocks chmod -R 0777 /data/data/org.domokit.stocks/app_sky_shell; cd tmp; adb pull /data/data/org.domokit.stocks/app_sky_shell; cd ..; ~/Downloads/debugger.app/Contents/MacOS/debugger tmp

import 'package:flutter/material.dart';

void main() {
  runApp(
    new MaterialApp(
      title: "Flutter Demo",
      routes: {
        '/': (RouteArguments args) => new FlutterDemo()
      }
    )
  );
}

class FlutterDemo extends StatelessComponent {
  Widget build(BuildContext context)  {
    return new Scaffold(
      toolBar: new StatisticsOverlay(
        optionsMask: 1 << StatisticsOption.displayRasterizerStatistics.index |
                     1 << StatisticsOption.displayEngineStatistics.index,
        rasterizerThreshold: 1
      ),
      body: new Block(
        [
          new ClipOval(child: new Container(height: 200.0, decoration: new BoxDecoration(backgroundColor: const Color(0xFF00FF00)))),
          new Container(child: new Container(height: 1000.0, decoration: new BoxDecoration(backgroundColor: const Color(0xFFFFFF00)))),
        ]
      )
    );
  }
}