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/tools/sk_app/VulkanWindowContext.cpp b/tools/sk_app/VulkanWindowContext.cpp
index c145fd2..ad0e15c 100644
--- a/tools/sk_app/VulkanWindowContext.cpp
+++ b/tools/sk_app/VulkanWindowContext.cpp
@@ -182,12 +182,9 @@
     // Pick our surface format. For now, just make sure it matches our sRGB request:
     VkFormat surfaceFormat = VK_FORMAT_UNDEFINED;
     VkColorSpaceKHR colorSpace = VK_COLORSPACE_SRGB_NONLINEAR_KHR;
-    auto srgbColorSpace = SkColorSpace::MakeSRGB();
-    bool wantSRGB = srgbColorSpace == params.fColorSpace;
     for (uint32_t i = 0; i < surfaceFormatCount; ++i) {
         VkFormat localFormat = surfaceFormats[i].format;
-        if (GrVkFormatIsSupported(localFormat) &&
-            GrVkFormatIsSRGB(localFormat, nullptr) == wantSRGB) {
+        if (GrVkFormatIsSupported(localFormat)) {
             surfaceFormat = localFormat;
             colorSpace = surfaceFormats[i].colorSpace;
             break;