[chromium] Remove deprecated/unused bits of WebLayerTreeView https://bugs.webkit.org/show_bug.cgi?id=112714 Patch by James Robinson <jamesr@chromium.org> on 2013-03-19 Reviewed by Adam Barth. * chromium/public/WebLayerTreeView.h: (WebLayerTreeView): git-svn-id: https://svn.webkit.org/repository/webkit/trunk/Source/Platform/chromium/public@146229 268f45cc-cd09-0410-ab3c-d52691b4dbfc