Revert "Revert "Move GrTextureProvider to src""

This reverts commit 13d7f5d7c2872ed4298330758e173ae605578cb2.

Reason for revert: Fixed client code. Re-landing.

Original change's description:
> 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>
> 

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

Change-Id: Ibcb2ea34654315327c46ea8e4de5bf14376d9bdf
Reviewed-on: https://skia-review.googlesource.com/9127
Reviewed-by: Brian Osman <brianosman@google.com>
Commit-Queue: Brian Osman <brianosman@google.com>
24 files changed