experimental/minimal_ios_mtl_skia_app

CQ_INCLUDE_TRYBOTS=skia.primary:Build-Mac-Clang-arm64-Debug-iOS_Metal,Build-Mac-Clang-arm64-Release-iOS_Metal

Change-Id: I3cb9c7d9073fc0572f49fe1c48caf638e78e34f5
Resubmit-of: https://skia-review.googlesource.com/c/skia/+/238757
Reviewed-on: https://skia-review.googlesource.com/c/skia/+/239121
Reviewed-by: Hal Canary <halcanary@google.com>
Commit-Queue: Hal Canary <halcanary@google.com>
diff --git a/BUILD.gn b/BUILD.gn
index 41cb32d..9db9eb1 100644
--- a/BUILD.gn
+++ b/BUILD.gn
@@ -2448,3 +2448,16 @@
     }
   }
 }
+
+if (is_ios && skia_use_metal) {
+  group("minimal_ios_mtl_skia_app") {
+    deps = [
+      "experimental/minimal_ios_mtl_skia_app",
+    ]
+  }
+  group("skottie_ios") {
+    deps = [
+      "experimental/skottie_ios",
+    ]
+  }
+}
diff --git a/experimental/minimal_ios_mtl_skia_app/README.md b/experimental/minimal_ios_mtl_skia_app/README.md
index feaff76..eb00b0f 100644
--- a/experimental/minimal_ios_mtl_skia_app/README.md
+++ b/experimental/minimal_ios_mtl_skia_app/README.md
@@ -4,14 +4,6 @@
 
     cd $SKIA_ROOT_DIRECTORY
 
-    cat >> BUILD.gn <<EOM
-    if (is_ios && skia_use_metal) {
-      group("minimal_ios_mtl_skia_app") {
-        deps = [ "experimental/minimal_ios_mtl_skia_app" ]
-      }
-    }
-    EOM
-
     mkdir -p out/ios_arm64_mtl
     cat > out/ios_arm64_mtl/args.gn <<EOM
     target_os="ios"
diff --git a/experimental/skottie_ios/README.md b/experimental/skottie_ios/README.md
index fcf3489..97282ed 100644
--- a/experimental/skottie_ios/README.md
+++ b/experimental/skottie_ios/README.md
@@ -4,14 +4,6 @@
 
     cd $SKIA_ROOT_DIRECTORY
 
-    cat >> BUILD.gn <<EOM
-    if (is_ios && skia_use_metal) {
-      group("skottie_ios") {
-        deps = [ "experimental/skottie_ios" ]
-      }
-    }
-    EOM
-
     mkdir -p out/ios_arm64_mtl
     cat > out/ios_arm64_mtl/args.gn <<EOM
     target_os="ios"