Revert "Revert "Revert "DeferredTextureImageData low-bit-depth/dithering support"""

This reverts commit 840ff8837bd93ee73c187890839b3f56e7c94fb7.

Reason for revert: Not obvious to me how to fix, reverting the chrome CL that was dependent on this.

Original change's description:
> Revert "Revert "DeferredTextureImageData low-bit-depth/dithering support""
> 
> This reverts commit d7c681d6a7b154d276e275becc51685eac8705c2.
> 
> Reason for revert: New param already used in Chrome
> 
> Original change's description:
> > Revert "DeferredTextureImageData low-bit-depth/dithering support"
> > 
> > This reverts commit 2c075e749d1f33dea06ad2710e15c9a1d60ebced.
> > 
> > Reason for revert: Breaking tests. e.g.: https://chromium-swarm.appspot.com/task?id=369dc44f62ce9510&refresh=10
> > 
> > Original change's description:
> > > DeferredTextureImageData low-bit-depth/dithering support
> > > 
> > > Cause DeferredTextureImageData functionality to support low bit depth
> > > (4444, 565) image formats (with dithering).
> > > 
> > > Bug: 720105
> > > Change-Id: Ie3b5768ebc393d9b0a5322461c722bf37c80b791
> > > Reviewed-on: https://skia-review.googlesource.com/18945
> > > Reviewed-by: Brian Salomon <bsalomon@google.com>
> > > Commit-Queue: Eric Karl <ericrk@chromium.org>
> > 
> > TBR=bsalomon@google.com,ericrk@chromium.org
> > No-Presubmit: true
> > No-Tree-Checks: true
> > No-Try: true
> > Bug: 720105
> > 
> > Change-Id: I07aec722425efc62bc54f82cee9a19a9bf339f7b
> > Reviewed-on: https://skia-review.googlesource.com/19039
> > Reviewed-by: Brian Salomon <bsalomon@google.com>
> > Commit-Queue: Brian Salomon <bsalomon@google.com>
> 
> TBR=bsalomon@google.com,reviews@skia.org,ericrk@chromium.org
> No-Presubmit: true
> No-Tree-Checks: true
> No-Try: true
> Bug: 720105
> 
> Change-Id: I91e690d0564f04209a2bd677de9ae9eb9c0f90d3
> Reviewed-on: https://skia-review.googlesource.com/19041
> Reviewed-by: Brian Salomon <bsalomon@google.com>
> Commit-Queue: Brian Salomon <bsalomon@google.com>

TBR=bsalomon@google.com,reviews@skia.org,ericrk@chromium.org
No-Presubmit: true
No-Tree-Checks: true
No-Try: true
Bug: 720105

Change-Id: I63eb0051964ce99e187b4e4943ea79bc22d392d2
Reviewed-on: https://skia-review.googlesource.com/19046
Reviewed-by: Brian Salomon <bsalomon@google.com>
Commit-Queue: Brian Salomon <bsalomon@google.com>
6 files changed