title: Layer composition in the chrome dev tools
body: <p>I have simple transition animation on <strong><em>div</em></strong> element. To prevent unnecessary paint events i applied to it higher z-index and 0 transformation so this <strong><em>div</em></strong> is likely to be on it's own layer. But waterfall chart shows layer composition event thats is likely to occur after each animated tick. I wonder, is this some final layer composition before GPU page render and is inevitable before every change on the page or i just doing sometning wrong?</p>