Fix a unintended shader change in GrTextureEffect

nearest + repeat doesn't need to operate in unnorm coords.

Restores behavior previos to:
https://skia-review.googlesource.com/c/skia/+/297189y

Change-Id: Id78fb1a1526e0703ed17a3c46082209447cac2dd
Reviewed-on: https://skia-review.googlesource.com/c/skia/+/297464
Auto-Submit: Brian Salomon <bsalomon@google.com>
Commit-Queue: Michael Ludwig <michaelludwig@google.com>
Reviewed-by: Michael Ludwig <michaelludwig@google.com>
diff --git a/src/gpu/effects/GrTextureEffect.cpp b/src/gpu/effects/GrTextureEffect.cpp
index 554fd1d..0f1b0fb 100644
--- a/src/gpu/effects/GrTextureEffect.cpp
+++ b/src/gpu/effects/GrTextureEffect.cpp
@@ -406,7 +406,7 @@
                   switch (m) {
                       case ShaderMode::kNone:                     return false;
                       case ShaderMode::kClamp:                    return false;
-                      case ShaderMode::kRepeatNearest:            return true;
+                      case ShaderMode::kRepeatNearest:            return false;
                       case ShaderMode::kRepeatBilerp:             return true;
                       case ShaderMode::kRepeatMipMap:             return true;
                       case ShaderMode::kMirrorRepeat:             return false;