Revert "Revert "Add and implement EGL_ANGLE_device_creation[_d3d11]"" This reverts commit dd5c5b79333fdde7858a77d39e91cc3d30b74c9e. BUG=angleproject:1190 Change-Id: I1bc1b232b6a916da6d18b546baf20e0854a2768f Reviewed-on: https://chromium-review.googlesource.com/315169 Tested-by: Austin Kinross <aukinros@microsoft.com> Reviewed-by: Jamie Madill <jmadill@chromium.org>