ca74c312f7
StockMenu was creating a container for the sole purpose of applying style to PopupMenu. Now we just use a StyleNode. Also, I've reverted the change to make box-sizing default to border-box. It turns out that CL wasn't effective because we didn't use the initialBoxSizing function to initialize box sizing. I've made us use initialBoxSizing but switch the default back to content-box because actually using border-box breaks a bunch of stuff. R=eseidel@chromium.org Review URL: https://codereview.chromium.org/1024083003