Dart: Moves |native| methods to patch files.

sky/engine/bindings/BUILD.gn

Index: sky/engine/bindings/BUILD.gn
diff --git a/sky/engine/bindings/BUILD.gn b/sky/engine/bindings/BUILD.gn
index cf42a0a4af0478ada501c06f1ca08af23f46f14f..d749d2e1c7bb161ce755646bb8bc239cc7e5f0cf 100644
--- a/sky/engine/bindings/BUILD.gn
+++ b/sky/engine/bindings/BUILD.gn
@@ -39,6 +39,7 @@ source_set("bindings") {
     "//sky/engine/tonic",
     "//sky/engine/wtf",
     ":generated_bindings",
+    ":patches_cc",
     ":snapshot_cc",
   ]
   include_dirs = [
@@ -143,6 +144,63 @@ source_set("snapshot_cc") {
   ]
 }
 
+action("generate_dart_embedder_patch_resources_cc") {
+  inputs = [
+    "//dart/runtime/tools/create_resources.py",
+    "//mojo/dart/embedder/core/buffer_patch.dart",
+    "//mojo/dart/embedder/core/data_pipe_patch.dart",
+    "//mojo/dart/embedder/core/handle_patch.dart",
+    "//mojo/dart/embedder/core/handle_watcher_patch.dart",
+    "//mojo/dart/embedder/core/message_pipe_patch.dart",
+  ]
+  output = "$target_gen_dir/dart_embedder_patch_resources.cc"
+  outputs = [
+    output,
+  ]
+
+  # Patch files
+  buffer_patch_path = rebase_path("//mojo/dart/embedder/core/buffer_patch.dart")
+  data_pipe_patch_path =
+      rebase_path("//mojo/dart/embedder/core/data_pipe_patch.dart")
+  handle_patch_path = rebase_path("//mojo/dart/embedder/core/handle_patch.dart")
+  handle_watcher_patch_path =
+      rebase_path("//mojo/dart/embedder/core/handle_watcher_patch.dart")
+  message_pipe_patch_path =
+      rebase_path("//mojo/dart/embedder/core/message_pipe_patch.dart")
+
+  root_path = rebase_path("//mojo/dart/embedder/")
+  script = "//dart/runtime/tools/create_resources.py"
+
+  args = [
+    "--output",
+    rebase_path(output),
+    "--outer_namespace",
+    "blink",
+
+    #"--inner_namespace",
+    #"dart",
+    "--table_name",
+    "dart_embedder_patch",
+    "--root_prefix",
+    root_path,
+    buffer_patch_path,
+    data_pipe_patch_path,
+    handle_patch_path,
+    handle_watcher_patch_path,
+    message_pipe_patch_path,
+  ]
+}
+
+source_set("patches_cc") {
+  sources = [
+    "$target_gen_dir/dart_embedder_patch_resources.cc",
+  ]
+
+  deps = [
+    ":generate_dart_embedder_patch_resources_cc",
+  ]
+}
+
 action("compute_interfaces_info_individual") {
   sources = core_idl_files + core_dependency_idl_files
   script = "$bindings_scripts_dir/compute_interfaces_info_individual.py"