Dart: Removes all but native calls and the handle watcher from the snapshot.

mojo/public/dart/rules.gni

 # Copyright 2015 The Chromium Authors. All rights reserved.
 # Use of this source code is governed by a BSD-style license that can be
 # found in the LICENSE file.
 
 # Rules to generate python packaged applications for Dart
 
 import("../mojo_sdk.gni")
 
 template("dart_package") {
   action(target_name) {
@@ skipping 17 matching lines @@
       datadeps = invoker.datadeps
     }
 
     output = "$target_out_dir/$target_name.dartzip"
     outputs = [
       output,
     ]
 
     rebase_base_dir =
         rebase_path(get_label_info(":$target_name", "dir"), root_build_dir)
+    if (defined(invoker.base_dir)) {
+      rebase_base_dir = invoker.base_dir
+    }
     rebase_inputs = rebase_path(inputs, root_build_dir)
     rebase_zip_inputs = rebase_path(zip_inputs, root_build_dir)
     rebase_output = rebase_path(output, root_build_dir)
     args = [
       "--base-dir=$rebase_base_dir",
       "--inputs=$rebase_inputs",
       "--zip-inputs=$rebase_zip_inputs",
       "--output=$rebase_output",
     ]
   }
@@ skipping 19 matching lines @@
     script = rebase_path("mojo/public/tools/dart_analyze.py", ".", mojo_root)
 
     sources = [
       package_output,
     ]
 
     args = [
       rebase_path(package_output),
       rebase_path("$target_gen_dir/${target_name}_analyze.stamp"),
       "--no-hints",
-
-      # The dart bindings refer to the autogenerated application interface in
-      # their source code; since that code is then packaged into the image, we
-      # need to manually resolve these package urls to the autogenerated code.
-      "--url-mapping=package:mojo/public/interfaces/application/application.mojom.dart,/" + rebase_path(
-              "mojo/public/interfaces/application/application.mojom.dart",
-              "/",
-              root_gen_dir + mojo_root),
-      "--url-mapping=package:mojo/public/interfaces/application/service_provider.mojom.dart,/" + rebase_path(
-              "mojo/public/interfaces/application/service_provider.mojom.dart",
-              "/",
-              root_gen_dir + mojo_root),
-      "--url-mapping=package:mojo/public/interfaces/application/shell.mojom.dart,/" + rebase_path(
-              "mojo/public/interfaces/application/shell.mojom.dart",
-              "/",
-              root_gen_dir + mojo_root),
-
-      # If you are trying to use the mojo sdk in another repository, you'll
-      # probably also need these url mapping overrides. Users are currently
-      # referring to these files with these third_party/mojo/ URLs.
-      #
-      # (This means that we're referring to the same files through two different
-      # URLs, depending on which part of the system we're referring to them from.
-      # This is not a good idea.)
-      "--url-mapping=package:third_party/mojo/src/mojo/public/interfaces/application/application.mojom.dart,/" + rebase_path(
-              "mojo/public/interfaces/application/application.mojom.dart",
-              "/",
-              root_gen_dir + mojo_root),
-      "--url-mapping=package:third_party/mojo/src/mojo/public/interfaces/application/service_provider.mojom.dart,/" + rebase_path(
-              "mojo/public/interfaces/application/service_provider.mojom.dart",
-              "/",
-              root_gen_dir + mojo_root),
-      "--url-mapping=package:third_party/mojo/src/mojo/public/interfaces/application/shell.mojom.dart,/" + rebase_path(
-              "mojo/public/interfaces/application/shell.mojom.dart",
-              "/",
-              root_gen_dir + mojo_root),
     ]
 
-    # Because the standard 'mojo:*' packages depend on the application mojom
-    # interface, we must depend on their existence, even though we don't depend
-    # directly on them.
-    deps = [
-      rebase_path("mojo/public/interfaces/application", ".", mojo_root),
-    ]
+    deps = []
     if (defined(invoker.deps)) {
       deps += invoker.deps
     }
 
     if (defined(invoker.datadeps)) {
       datadeps = invoker.datadeps
     }
 
     outputs = [
       "$target_gen_dir/${target_name}_analyze.stamp",
@@ skipping 47 matching lines @@
 
     rebase_input = rebase_path(input, root_build_dir)
     rebase_output = rebase_path(output, root_build_dir)
     args = [
       "--input=$rebase_input",
       "--output=$rebase_output",
       "--line=$line",
     ]
   }
 }