Dest color space no longer impacts mipmaps or texture sampling

PS5: Removes SkDestinationSurfaceColorMode, tracking of mipmap
mode on GrTexture, sRGB decode state per-texture. Because we
were often choosing sRGB configs for RGB color types, legacy
rendering would then be incorrect (too dark). So...

PS7: Stops ever using sRGB pixel configs when translating
image info or color type. Also removes a bunch of GrCaps bits
and a GrContextOption that are no longer relevant.

PS9: Adjusts surface creation unit test expectations, and
changes the raster rules accordingly.

At this point, sRGB configs are (obviously) going to be broken.

Locally, I ran 8888, gl, and the gbr- versions of both. Across
all GMs x configs, there are 13 diffs. 12 are GMs that create
surfaces with a color-space attached (and thus, the offscreen
is no longer getting sRGB pixel config). The only remainder
constructs an SkPictureImageGenerator, (with an attached color
space) and renders it to the gbr-gl canvas, which triggers a
a tagged surface inside the generator.

Bug: skia:
Change-Id: Ie5edfa157dd799f3121e8173fc4f97f6c8ed6789
Reviewed-on: https://skia-review.googlesource.com/131282
Commit-Queue: Brian Osman <brianosman@google.com>
Reviewed-by: Mike Klein <mtklein@google.com>
Reviewed-by: Brian Salomon <bsalomon@google.com>
diff --git a/dm/DMSrcSink.cpp b/dm/DMSrcSink.cpp
index 5b93de3..baa98a0 100644
--- a/dm/DMSrcSink.cpp
+++ b/dm/DMSrcSink.cpp
@@ -1514,8 +1514,7 @@
             break;
         case SkCommandLineConfigGpu::SurfType::kBackendTexture:
             backendTexture = context->contextPriv().getGpu()->createTestingOnlyBackendTexture(
-                    nullptr, info.width(), info.height(), info.colorType(), info.colorSpace(),
-                    true, GrMipMapped::kNo);
+                    nullptr, info.width(), info.height(), info.colorType(), true, GrMipMapped::kNo);
             surface = SkSurface::MakeFromBackendTexture(context, backendTexture,
                                                         kTopLeft_GrSurfaceOrigin, fSampleCount,
                                                         fColorType, info.refColorSpace(), &props);