Auto merge of #276 - kilobtye:fix-texture-grow, r=pcwalton
Auto merge of #276 - kilobtye:fix-texture-grow, r=pcwalton

Update texture size properly when grow texture

This should fix servo/servo#11323

servo/webrender,alanamramjit/webrender,servo/webrender,servo/webrender,servo/webrender,servo/webrender,servo/webrender,alanamramjit/webrender