Reland _embedder.yaml support to Flutter engine

DEPS

@@ -26,7 +26,7 @@ vars = {
 
   # Note: When updating the Dart revision, ensure that all entries that are
   # dependencies of dart are also updated
-  'dart_revision': '5322692506e0f1af4e5c83ea8ae994498342466a',
+  'dart_revision': 'e091d17fd9e94e3f9a0cebab713b27bb8908240f',
   'dart_observatory_packages_revision': 'cf90eb9077177d3d6b3fd5e8289477c2385c026a',
   'dart_root_certificates_revision': 'c3a41df63afacec62fcb8135196177e35fe72f71',
 

sky/engine/bindings/BUILD.gn

@@ -85,6 +85,7 @@ action("generate_snapshot_bin") {
   deps = [
     "//dart/runtime/bin:gen_snapshot($dart_host_toolchain)",
     ":generate_dart_ui",
+    ":generate_dart_jni",
   ]
   inputs = [
     "//dart/runtime/tools/create_snapshot_bin.py",
@@ -179,3 +180,15 @@ copy("generate_dart_ui") {
     "$bindings_output_dir/{{source_file_part}}",
   ]
 }
+
+copy("generate_dart_jni") {
+  sources = [
+    "jni/jni.dart",
+    "jni/jni_helper.dart",
+    "jni/jni_raw.dart",
+  ]
+
+  outputs = [
+    "$bindings_output_dir/dart_jni/{{source_file_part}}",
+  ]
+}

sky/engine/bindings/snapshot.dart

@@ -6,6 +6,7 @@ import 'dart:async';
 import 'dart:collection';
 import 'dart:convert';
 import 'dart:core';
+import 'dart:developer';
 import 'dart:io';
 import 'dart:isolate';
 import 'dart:jni';

sky/packages/sky_engine/BUILD.gn

@@ -3,6 +3,7 @@
 # found in the LICENSE file.
 
 import("//mojo/public/dart/rules.gni")
+import("//dart/sdk/lib/rules.gni")
 
 copy("copy_sky_engine_license") {
   sources = [
@@ -15,14 +16,77 @@ copy("copy_sky_engine_license") {
   ]
 }
 
+dart_sdk_lib_copy("async") {
+  sdk_lib_name = "async"
+  destination = "$root_gen_dir/dart-pkg/sky_engine/dart_sdk"
+}
+
+dart_sdk_lib_copy("collection") {
+  sdk_lib_name = "collection"
+  destination = "$root_gen_dir/dart-pkg/sky_engine/dart_sdk"
+}
+
+dart_sdk_lib_copy("convert") {
+  sdk_lib_name = "convert"
+  destination = "$root_gen_dir/dart-pkg/sky_engine/dart_sdk"
+}
+
+dart_sdk_lib_copy("core") {
+  sdk_lib_name = "core"
+  destination = "$root_gen_dir/dart-pkg/sky_engine/dart_sdk"
+}
+
+dart_sdk_lib_copy("developer") {
+  sdk_lib_name = "developer"
+  destination = "$root_gen_dir/dart-pkg/sky_engine/dart_sdk"
+}
+
+dart_sdk_lib_copy("io") {
+  sdk_lib_name = "io"
+  destination = "$root_gen_dir/dart-pkg/sky_engine/dart_sdk"
+}
+
+dart_sdk_lib_copy("isolate") {
+  sdk_lib_name = "isolate"
+  destination = "$root_gen_dir/dart-pkg/sky_engine/dart_sdk"
+}
+
+dart_sdk_lib_copy("math") {
+  sdk_lib_name = "math"
+  destination = "$root_gen_dir/dart-pkg/sky_engine/dart_sdk"
+}
+
+dart_sdk_lib_copy("typed_data") {
+  sdk_lib_name = "typed_data"
+  destination = "$root_gen_dir/dart-pkg/sky_engine/dart_sdk"
+}
+
+
+group("copy_dart_sdk") {
+  deps = [
+    ":async",
+    ":collection",
+    ":convert",
+    ":core",
+    ":developer",
+    ":io",
+    ":isolate",
+    ":math",
+    ":typed_data",
+  ]
+}
+
 dart_pkg("sky_engine") {
   sources = [
+    "dart_sdk/_empty.dart",
+    "lib/_embedder.yaml",
     "README.md",
     "pubspec.yaml",
   ]
 
   deps = [
     ":copy_sky_engine_license",
+    ":copy_dart_sdk",
     "//sky/engine/bindings",
   ]
 
@@ -34,7 +98,4 @@ dart_pkg("sky_engine") {
     "$service_isolate_dir/loader.dart",
     "$service_isolate_dir/server.dart",
   ]
-  sdk_ext_mappings = [
-    "dart:ui,dart_ui.dart",
-  ]
 }

sky/packages/sky_engine/lib/_embedder.yaml

@@ -0,0 +1,14 @@
+embedded_libs:
+  "dart:async": "../dart_sdk/async/async.dart"
+  "dart:collection": "../dart_sdk/collection/collection.dart"
+  "dart:convert": "../dart_sdk/convert/convert.dart"
+  "dart:core": "../dart_sdk/core/core.dart"
+  "dart:developer": "../dart_sdk/developer/developer.dart"
+  "dart:io": "../dart_sdk/io/io.dart"
+  "dart:isolate": "../dart_sdk/isolate/isolate.dart"
+  "dart:jni": "../sdk_ext/dart_jni/jni.dart"
+  "dart:math": "../dart_sdk/math/math.dart"
+  "dart:typed_data": "../dart_sdk/typed_data/typed_data.dart"
+  "dart:ui": "../sdk_ext/dart_ui.dart"
+  "dart:_internal": "../dart_sdk/_empty.dart"
+  "dart:nativewrappers": "../dart_sdk/_empty.dart"