This reverts commit 19c1233c44.
Reason for revert: want to make sure Google3 can roll
Original change's description:
> Change how vertex/instance attributes are handled in geometry processors.
>
> * No longer register vertex/instance attributes on base class, just counts
>
> * Separate instance and vertex attributes and remove InputRate and offset
>
> * Make attributes constexpr where possible
>
> Change-Id: I1f1d5e772fa177a96d2aeb805aab7b69f35bfae6
> Reviewed-on: https://skia-review.googlesource.com/132405
> Commit-Queue: Brian Salomon <bsalomon@google.com>
> Reviewed-by: Chris Dalton <csmartdalton@google.com>
TBR=egdaniel@google.com,bsalomon@google.com,csmartdalton@google.com
Change-Id: I4800632515e14fbf54af52826928ac915657b59f
No-Presubmit: true
No-Tree-Checks: true
No-Try: true
Reviewed-on: https://skia-review.googlesource.com/135661
Reviewed-by: Mike Klein <mtklein@google.com>
Commit-Queue: Mike Klein <mtklein@google.com>
5045e501d2