Revert "Move GrTextureProvider to src"

This reverts commit 24429c68c56683252e3fc2a79d9b660eaf96ec0c.

Reason for revert: Breaking a roll

Original change's description:
> Move GrTextureProvider to src
> 
> With this hidden, we can make further simplification. Just want to test
> this change against our external clients first, to make sure we're okay
> to proceed.
> 
> BUG=skia:
> 
> Change-Id: I47f8c8f2912201c2890bc2f9a9d68aa92649a2d4
> Reviewed-on: https://skia-review.googlesource.com/9072
> Commit-Queue: Brian Osman <brianosman@google.com>
> Reviewed-by: Brian Salomon <bsalomon@google.com>
> 

TBR=bsalomon@google.com,brianosman@google.com,benjaminwagner@google.com,reviews@skia.org
NOPRESUBMIT=true
NOTREECHECKS=true
NOTRY=true
BUG=skia:

Change-Id: I43cc135731245c29e24bbecf06ee46c562955c03
Reviewed-on: https://skia-review.googlesource.com/9123
Reviewed-by: Brian Osman <brianosman@google.com>
Commit-Queue: Brian Osman <brianosman@google.com>
24 files changed