We will not allocate new mips on a wrapped texture but we will use mips
if the wrapped texture already has one. If we need mips for a draw this
will trigger a copy to occur.
Also some cleanup up of our InternalSurfaceFlags in general.
Bug: skia:7806
Change-Id: I7aa666478cc91bba6e0644b323825fcc9b49793a
Reviewed-on: https://skia-review.googlesource.com/121348
Commit-Queue: Greg Daniel <egdaniel@google.com>
Reviewed-by: Robert Phillips <robertphillips@google.com>
e320486489