Dart: Adds a content handler and a test.

mojo/dart/embedder/test/BUILD.gn

Index: mojo/dart/embedder/test/BUILD.gn
diff --git a/mojo/dart/embedder/test/BUILD.gn b/mojo/dart/embedder/test/BUILD.gn
index 875691d422cdd8b4d61daa427965bfe9ccaea361..507f17c18b694d4af99ff15b754e9d47022e3ffe 100644
--- a/mojo/dart/embedder/test/BUILD.gn
+++ b/mojo/dart/embedder/test/BUILD.gn
@@ -4,16 +4,98 @@
 
 import("//mojo/public/tools/bindings/mojom.gni")
 
+action("generate_test_snapshot_bin") {
+  deps = [
+    "//dart/runtime/bin:gen_snapshot",
+  ]
+  inputs = [
+    "test_snapshot.dart",
+    "//dart/runtime/tools/create_snapshot_bin.py",
+    "//mojo/dart/embedder/builtin.dart",
+    "//mojo/public/dart/bindings.dart",
+    "//mojo/public/dart/core.dart",
+    "//mojo/public/dart/src/buffer.dart",
+    "//mojo/public/dart/src/client.dart",
+    "//mojo/public/dart/src/codec.dart",
+    "//mojo/public/dart/src/data_pipe.dart",
+    "//mojo/public/dart/src/drain_data.dart",
+    "//mojo/public/dart/src/event_stream.dart",
+    "//mojo/public/dart/src/handle.dart",
+    "//mojo/public/dart/src/handle_watcher.dart",
+    "//mojo/public/dart/src/interface.dart",
+    "//mojo/public/dart/src/message.dart",
+    "//mojo/public/dart/src/message_pipe.dart",
+    "//mojo/public/dart/src/struct.dart",
+    "//mojo/public/dart/src/timer_impl.dart",
+    "//mojo/public/dart/src/timer_queue.dart",
+    "//mojo/public/dart/src/types.dart",
+  ]
+  output = "$target_gen_dir/test_snapshot_gen.bin"
+  outputs = [
+    output,
+  ]
+
+  script = "//dart/runtime/tools/create_snapshot_bin.py"
+  builtin_path = rebase_path("//mojo/dart/embedder/builtin.dart")
+  bindings_path = rebase_path("//mojo/public/dart/bindings.dart")
+  core_path = rebase_path("//mojo/public/dart/core.dart")
+  args = [
+    "--executable", rebase_path("$root_out_dir/gen_snapshot"),
+    "--package_root", rebase_path("$root_gen_dir"),
+    "--script", rebase_path("test_snapshot.dart"),
+    "--output_bin", rebase_path(output, root_build_dir),
+    "--target_os", os,
+    "--url_mapping=dart:mojo_bindings,$bindings_path",
+    "--url_mapping=dart:mojo_builtin,$builtin_path",
+    "--url_mapping=dart:mojo_core,$core_path",
+  ]
+}
+
+action("generate_test_snapshot_file") {
+  deps = [
+    ":generate_test_snapshot_bin",
+  ]
+  inputs = [
+    "//dart/runtime/tools/create_snapshot_file.py",
+    "//mojo/dart/embedder/snapshot.cc.tmpl",
+    "$target_gen_dir/test_snapshot_gen.bin",
+  ]
+  output = "$target_gen_dir/test_snapshot.cc"
+  outputs = [
+    output,
+  ]
+
+  script = "//dart/runtime/tools/create_snapshot_file.py"
+  args = [
+    "--input_bin", rebase_path("$target_gen_dir/test_snapshot_gen.bin"),
+    "--input_cc", rebase_path("//mojo/dart/embedder/snapshot.cc.tmpl"),
+    "--output", rebase_path(output),
+  ]
+}
+
+source_set("dart_controller_for_test") {
+  testonly=true
+  sources = [
+    "$target_gen_dir/test_snapshot.cc",
+  ]
+
+  deps = [
+    ":generate_test_snapshot_file",
+    "//mojo/dart/embedder:dart_controller_no_snapshot",
+  ]
+}
+
 test("dart_unittests") {
   sources = [
     "run_dart_tests.cc",
   ]
   deps = [
+    ":dart_controller_for_test",
     ":dart_to_cpp_unittests",
     ":expect",
     "//base",
     "//crypto:crypto",
-    "//mojo/dart/embedder:dart_controller",
+    "//mojo/dart/embedder:dart_controller_no_snapshot",
     "//mojo/edk/test:run_all_unittests",
     "//mojo/edk/test:test_support",
     "//mojo/public/cpp/environment",
@@ -39,10 +121,11 @@ source_set("dart_to_cpp_unittests") {
     "dart_to_cpp_tests.cc",
   ]
   deps = [
+    ":dart_controller_for_test",
     ":dart_to_cpp_bindings",
     "//base",
     "//crypto",
-    "//mojo/dart/embedder:dart_controller",
+    "//mojo/dart/embedder:dart_controller_no_snapshot",
     "//mojo/edk/test:test_support",
     "//mojo/public/cpp/bindings",
     "//mojo/public/cpp/system",