tree 9d5c3ff382d1f11424e09738b71f27fc710d59a1
parent ec1c620316685cb0e9f41dbbef805e74c61142a8
author Brian Salomon <bsalomon@google.com> 1544797130 -0500
committer Skia Commit-Bot <skia-commit-bot@chromium.org> 1544807556 +0000

Reduce the number of backend->pixelconfig GrCaps virtuals.

Moves method to get GrBackendFormat from GrBackendTexture from GrCaps
to GrBackendTexture so that a GrContext is not required.

Uses kUnknown_GrPixelConfig as failure return from GrCaps functions
rather than an GrPixelConfig* out param and bool result.

Having the texture type be part of GrBackendFormat made removing the
GrCaps function that goes from GrBackendRenderTarget to GrPixelConfig
awkward so that was left alone for now.

Change-Id: If9be0f898c538be4a7b24022b6011f63441a0317
Reviewed-on: https://skia-review.googlesource.com/c/175991
Reviewed-by: Greg Daniel <egdaniel@google.com>
Commit-Queue: Brian Salomon <bsalomon@google.com>