webgl: Make the RequestWebGLContext return the GLLimits structure
webgl: Make the RequestWebGLContext return the GLLimits structure

servo/webrender,servo/webrender,servo/webrender,alanamramjit/webrender,servo/webrender,alanamramjit/webrender,servo/webrender_traits,DDEFISHER/webrender_traits,servo/webrender,servo/webrender