DXGI 1.2 is required to create a swap chain for a HWND owned by another process. This fix will allow us to fall back to creating a Renderer9 if DXGI 1.2 is not available instead of failing to create the swap chain later. BUG=angle:562 Change-Id: I01b08ffb262bc3f9c86d244168df14eba52c5bdc Reviewed-on: https://chromium-review.googlesource.com/186980Reviewed-by: Shannon Woods <shannonwoods@chromium.org> Tested-by: Geoff Lang <geofflang@chromium.org>
