Rename GrTextUtils::Target to GrTextTarget

Change-Id: I29e1c6e117a4cbbde6e43639228b1103966b6358
Reviewed-on: https://skia-review.googlesource.com/146641
Commit-Queue: Herb Derby <herb@google.com>
Reviewed-by: Brian Salomon <bsalomon@google.com>
Reviewed-by: Jim Van Verth <jvanverth@google.com>
diff --git a/gn/gpu.gni b/gn/gpu.gni
index f4f078b..e6533ec 100644
--- a/gn/gpu.gni
+++ b/gn/gpu.gni
@@ -422,7 +422,7 @@
   "$_src/gpu/text/GrTextContext.cpp",
   "$_src/gpu/text/GrTextContext.h",
   "$_src/gpu/text/GrTextBlobVertexRegenerator.cpp",
-  "$_src/gpu/text/GrTextUtils.h",
+  "$_src/gpu/text/GrTextTarget.h",
 
   "$_src/gpu/gl/GrGLAssembleInterface.cpp",
   "$_src/gpu/gl/GrGLBuffer.cpp",