Explain canvaskit crash and restart the tab before CanvasKit destroys the browser. (#2123)
Explain canvaskit crash and restart the tab before CanvasKit destroys the browser. (#2123)

* Update negative space images to use new assets that can be tiled.
flutter/devtools,flutter/devtools,flutter/devtools,flutter/devtools,flutter/devtools,flutter/devtools,flutter/devtools,flutter/devtools,flutter/devtools