Update skcms.h includes to its new location.

This is the equivalent to https://crrev.com/655584

Change-Id: Iedc0d87e8a4b76a02d819d78177033499e05540b
Reviewed-on: https://pdfium-review.googlesource.com/c/pdfium/+/57613
Reviewed-by: Mike Reed <reed@google.com>
Commit-Queue: Lei Zhang <thestig@chromium.org>
diff --git a/skia/BUILD.gn b/skia/BUILD.gn
index 3434029..ca1bac1 100644
--- a/skia/BUILD.gn
+++ b/skia/BUILD.gn
@@ -20,10 +20,7 @@
 
 # External-facing config for dependent code.
 config("skia_config") {
-  include_dirs = [
-    "//third_party/skia",
-    "//third_party/skia/third_party/skcms",
-  ]
+  include_dirs = [ "//third_party/skia" ]
 
   defines = [ "SK_USER_CONFIG_HEADER=\"../../skia/config/SkUserConfig.h\"" ]
 
@@ -148,8 +145,9 @@
   }
 
   public = [
-    "//third_party/skia/third_party/skcms/skcms.h",
+    "//third_party/skia/include/third_party/skcms/skcms.h",
   ]
+  include_dirs = [ "//third_party/skia/include/third_party/skcms" ]
   sources =
       rebase_path(skcms_sources, ".", "//third_party/skia/third_party/skcms")
 }