Revert "Reland "Take GrContext private, GrDDLContext inherit from GrRecordingContext""

This reverts commit ff13ffbeacec5335cfdb84c8a9d20bb78e10da58.

Reason for revert: Blink in g3

Original change's description:
> Reland "Take GrContext private, GrDDLContext inherit from GrRecordingContext"
>
> This reverts commit 89bdc90ac877dc8cd49c86c35a20d9df0d3b9016.
>
> Reason for revert: Fix metal
>
> Original change's description:
> > Revert "Take GrContext private, GrDDLContext inherit from GrRecordingContext"
> >
> > This reverts commit d2daa94edeca88281796524fae45f38f11a7bef2.
> >
> > Reason for revert: Metaru
> >
> > Original change's description:
> > > Take GrContext private, GrDDLContext inherit from GrRecordingContext
> > >
> > > Woo!
> > >
> > > Change-Id: I8d201b709343dc18cad31ea740575285dd035f35
> > > Docs-Preview: https://skia.org/?cl=317436
> > > Reviewed-on: https://skia-review.googlesource.com/c/skia/+/317436
> > > Reviewed-by: Robert Phillips <robertphillips@google.com>
> > > Reviewed-by: Brian Salomon <bsalomon@google.com>
> > > Commit-Queue: Adlai Holler <adlai@google.com>
> >
> > TBR=bsalomon@google.com,robertphillips@google.com,adlai@google.com
> >
> > Change-Id: I9b58dee285fbdc49ebc8e76df5da0fe224cf9787
> > No-Presubmit: true
> > No-Tree-Checks: true
> > No-Try: true
> > Reviewed-on: https://skia-review.googlesource.com/c/skia/+/318758
> > Reviewed-by: Adlai Holler <adlai@google.com>
> > Commit-Queue: Adlai Holler <adlai@google.com>
>
> TBR=bsalomon@google.com,robertphillips@google.com,adlai@google.com
>
>
> Change-Id: Id4b10795193a904cd4ed8c36e60e74abe3b6702a
> Docs-Preview: https://skia.org/?cl=318759
> Cq-Include-Trybots: luci.skia.skia.primary:Build-Mac10.15.5-Clang-arm64-Debug-iOS_Metal,Build-Mac-Clang-x86_64-Debug-Metal
> Reviewed-on: https://skia-review.googlesource.com/c/skia/+/318759
> Commit-Queue: Adlai Holler <adlai@google.com>
> Reviewed-by: Adlai Holler <adlai@google.com>

TBR=bsalomon@google.com,robertphillips@google.com,adlai@google.com

Change-Id: Ib20fe933120d56b72efaec73a0bedec60bc28def
No-Presubmit: true
No-Tree-Checks: true
No-Try: true
Reviewed-on: https://skia-review.googlesource.com/c/skia/+/319184
Commit-Queue: Adlai Holler <adlai@google.com>
Reviewed-by: Adlai Holler <adlai@google.com>
11 files changed