Fix new_texture_image in "preAbandonGpuContext" mode

This fixes a valgrind complaint

Change-Id: I0f51168b2835b83d2bb5580257b02a105e249e31
Reviewed-on: https://skia-review.googlesource.com/8306
Reviewed-by: Robert Phillips <robertphillips@google.com>
Commit-Queue: Robert Phillips <robertphillips@google.com>
1 file changed