Add kRGBA_8888_SRGB GrColorType and remove GrSRGBEncoded.

Change-Id: Iad1c72eb81ffd9c006e39c96191fada990d9dbd6
Reviewed-on: https://skia-review.googlesource.com/c/skia/+/226224
Commit-Queue: Greg Daniel <egdaniel@google.com>
Reviewed-by: Brian Salomon <bsalomon@google.com>
Reviewed-by: Robert Phillips <robertphillips@google.com>
diff --git a/src/gpu/SkGr.cpp b/src/gpu/SkGr.cpp
index 0709ca3..2226463 100644
--- a/src/gpu/SkGr.cpp
+++ b/src/gpu/SkGr.cpp
@@ -303,6 +303,7 @@
         case GrColorType::kABGR_4444:
             return 2;
         case GrColorType::kUnknown:
+        case GrColorType::kRGBA_8888_SRGB:
         case GrColorType::kRGBA_1010102:
         case GrColorType::kAlpha_F16:
         case GrColorType::kRGBA_F32: