Revert "Revert "remove unused SkBitmap::copyPixelsTo""

This reverts commit 7bfdfda809e7273d7c962cc62ef9390b5007fb5a.

Reason for revert: google3 has been updated

Original change's description:
> Revert "remove unused SkBitmap::copyPixelsTo"
> 
> This reverts commit 0f3fdfacf32261f943dcac5cdfd14475011f40db.
> 
> Reason for revert: Blink-headless in Google3 needs an update too.
> 
> Original change's description:
> > remove unused SkBitmap::copyPixelsTo
> > 
> > Needs https://codereview.chromium.org/2812853002/ to land first
> > 
> > Bug: skia:6465
> > Change-Id: I531e33b2848cd995f20844786ed1a8d34d63fb64
> > Reviewed-on: https://skia-review.googlesource.com/13171
> > Reviewed-by: Mike Reed <reed@google.com>
> > Commit-Queue: Mike Reed <reed@google.com>
> > 
> 
> TBR=reed@google.com,reviews@skia.org
> NOPRESUBMIT=true
> NOTREECHECKS=true
> NOTRY=true
> 
> Change-Id: I5e7c4b0d05772e4948cb1dffdcc40e095fbdba41
> Reviewed-on: https://skia-review.googlesource.com/13185
> Reviewed-by: Mike Klein <mtklein@google.com>
> Commit-Queue: Mike Klein <mtklein@google.com>
> 

TBR=mtklein@google.com,reviews@skia.org,reed@google.com
NOPRESUBMIT=true
NOTREECHECKS=true
NOTRY=true

Change-Id: Id441cec351fe580cbb00739ca9544aa5276cf16a
Reviewed-on: https://skia-review.googlesource.com/13224
Reviewed-by: Mike Reed <reed@google.com>
Commit-Queue: Mike Reed <reed@google.com>
3 files changed