added byte and ubyte types to SKSL

created new GMs for skinning

Bug: skia:
Change-Id: I15fb2bd02fba8beb6dd2dd3f3716da016ea92192
Reviewed-on: https://skia-review.googlesource.com/140241
Commit-Queue: Ruiqi Mao <ruiqimao@google.com>
Reviewed-by: Brian Osman <brianosman@google.com>
Reviewed-by: Ethan Nicholas <ethannicholas@google.com>
diff --git a/src/gpu/vk/GrVkVaryingHandler.cpp b/src/gpu/vk/GrVkVaryingHandler.cpp
index c8c56c2..d210aba 100644
--- a/src/gpu/vk/GrVkVaryingHandler.cpp
+++ b/src/gpu/vk/GrVkVaryingHandler.cpp
@@ -30,14 +30,20 @@
         case kInt2_GrSLType:
         case kShort2_GrSLType:
         case kUShort2_GrSLType:
+        case kByte2_GrSLType:
+        case kUByte2_GrSLType:
             return 1;
         case kInt3_GrSLType:
         case kShort3_GrSLType:
         case kUShort3_GrSLType:
+        case kByte3_GrSLType:
+        case kUByte3_GrSLType:
             return 1;
         case kInt4_GrSLType:
         case kShort4_GrSLType:
         case kUShort4_GrSLType:
+        case kByte4_GrSLType:
+        case kUByte4_GrSLType:
             return 1;
         case kFloat2x2_GrSLType:
         case kHalf2x2_GrSLType:
@@ -60,9 +66,11 @@
              return 1;
         case kInt_GrSLType: // fall through
         case kShort_GrSLType:
+        case kByte_GrSLType:
              return 1;
-        case kUint_GrSLType:
-        case kUShort_GrSLType: // fall through
+        case kUint_GrSLType: // fall through
+        case kUShort_GrSLType:
+        case kUByte_GrSLType:
              return 1;
         case kTexture2D_GrSLType:
              return 0;