Revert "Introduce SkImages namespace; remove Ganesh GPU code from SkImage_Raster"

This reverts commit d21c3f85a2425d7d31ae1a258b920fccd53aed1c.

Reason for revert: Broke Chromium, Android, and G3

Original change's description:
> Introduce SkImages namespace; remove Ganesh GPU code from SkImage_Raster
>
> This is the first of many CLs that aims to split the GPU and CPU
> coupling to SkImage.
>
> Step 1 was to move all SkImage::Make static functions (factories)
> to their own namespace (SkImages), which allows us to define these
> in different header files, which can be optionally exposed via the public API.
>
>   * SkImage::MakeBackendTextureFromSkImage -> SkImages::GetBackendTextureFromImage
>   * SkImage::MakeCrossContextFromPixmap -> SkImages::CrossContextTextureFromPixmap
>   * SkImage::MakeFromAdoptedTexture -> SkImages::AdoptTextureFrom
>   * SkImage::MakeFromBitmap -> SkImages::RasterFromBitmap
>   * SkImage::MakeFromCompressedTexture -> SkImages::TextureFromCompressedTexture
>   * SkImage::MakeFromEncoded -> SkImages::DeferredFromEncodedData
>   * SkImage::MakeFromGenerator -> SkImages::DeferredFromGenerator
>   * SkImage::MakeFromPicture -> SkImages::DeferredFromPicture
>   * SkImage::MakeFromRaster -> SkImages::RasterFromPixmap
>   * SkImage::MakeFromTexture -> SkImages::BorrowTextureFrom
>   * SkImage::MakeFromYUVAPixmaps -> SkImages::TextureFromYUVAPixmaps
>   * SkImage::MakeFromYUVATextures -> SkImages::TextureFromYUVATextures
>   * SkImage::MakePromiseTexture -> SkImages::PromiseTextureFrom
>   * SkImage::MakePromiseYUVATexture -> SkImages::PromiseTextureFromYUVA
>   * SkImage::MakeRasterCopy -> SkImages::RasterFromPixmapCopy
>   * SkImage::MakeRasterData -> SkImages::RasterFromData
>   * SkImage::MakeRasterFromCompressed -> SkImages::RasterFromCompressedTextureData
>   * SkImage::MakeTextureFromCompressed -> SkImages::TextureFromCompressedTextureData
>
> We chose SkImages as the name because it aligns with existing
> "effective namespaces" like `SkShaders` and `SkColorFilters`.
>
> Step 2 was to move the logic requiring the Ganesh GPU backend out of
> SkImage classes (starting with SkImage_Raster as an easy starting point)
> and into files that live under src/gpu/ganesh. The graphite code
> will come later. This involved making SkImage_Raster.h so ganesh
> can see that subclass and exposing a few fields via getters/setters.
>
> I don't think these steps can be easily split into two CLs (sorry).
> I've left backwards compatible code so we can fix up clients
> incrementally (and lock it in via the
> SK_DISABLE_LEGACY_IMAGE_FACTORIES define).
>
> I ran `git clang-format origin/main` after the renaming, and spot
> checked the formatting; seemed fine to me.
>
> Suggested review order:
>  - SkImage.h, SkImageGanesh.h, SkImageAndroid.h. Note that SkImage.h
>    has all the legacy factories guarded by an #ifdef at the bottom
>    for easier deletion in the future.
>  - src/image/SkImage_*Factories.cpp to see where the implementation
>    of these factories have been moved. We want them in separate files
>    to make the modular builds easier in the future.
>  - SkImage_Base.cpp, SkImage_Raster.h where things were moved out
>    of SkImage.cpp and SkImage_Raster.cpp for better organization.
>  - GrImageUtils.cpp/.h to see where the other methods of SkRaster
>    that used the GPU code were moved. I hope to follow suit with
>    other Images but for now just keep their onAsView etc methods
>    in place.
>  - Many other changes were mechanical to use the new namespace
>    and methods.
>
> Change-Id: Ia345c2f0f1b1a2f65178a857bdd0d6118fee7e58
> Bug: skia:13983
> Reviewed-on: https://skia-review.googlesource.com/c/skia/+/648297
> Reviewed-by: Brian Osman <brianosman@google.com>
> Commit-Queue: Kevin Lubick <kjlubick@google.com>

Bug: skia:13983
Change-Id: If4d0d5d6286d45e85c4ef2144b3b8d5312889a29
No-Presubmit: true
No-Tree-Checks: true
No-Try: true
Reviewed-on: https://skia-review.googlesource.com/c/skia/+/658556
Bot-Commit: Rubber Stamper <rubber-stamper@appspot.gserviceaccount.com>
Owners-Override: Kevin Lubick <kjlubick@google.com>
231 files changed