Add a platform plugin infrastructure.

lib/src/runner/runner_test.dart

Index: lib/src/runner/runner_test.dart
diff --git a/lib/src/runner/browser/iframe_test.dart b/lib/src/runner/runner_test.dart
similarity index 72%
copy from lib/src/runner/browser/iframe_test.dart
copy to lib/src/runner/runner_test.dart
index 07e4bfd20c1eddd0240ca30e6bae04d30058202f..ca2c54391f7da7373a0e2c078ad7adfb6c99bb4f 100644
--- a/lib/src/runner/browser/iframe_test.dart
+++ b/lib/src/runner/runner_test.dart
@@ -4,33 +4,27 @@
 
 import 'package:stream_channel/stream_channel.dart';
 
-import '../../backend/group.dart';
-import '../../backend/live_test.dart';
-import '../../backend/live_test_controller.dart';
-import '../../backend/metadata.dart';
-import '../../backend/operating_system.dart';
-import '../../backend/state.dart';
-import '../../backend/suite.dart';
-import '../../backend/test.dart';
-import '../../backend/test_platform.dart';
-import '../../utils.dart';
-import '../../util/remote_exception.dart';
-import '../../util/stack_trace_mapper.dart';
+import '../backend/group.dart';
+import '../backend/live_test.dart';
+import '../backend/live_test_controller.dart';
+import '../backend/metadata.dart';
+import '../backend/operating_system.dart';
+import '../backend/state.dart';
+import '../backend/suite.dart';
+import '../backend/test.dart';
+import '../backend/test_platform.dart';
+import '../utils.dart';
+import '../util/remote_exception.dart';
 
-/// A test in a running iframe.
-class IframeTest extends Test {
+/// A test running remotely, controlled by a stream channel.
+class RunnerTest extends Test {
   final String name;
   final Metadata metadata;
 
-  /// The mapper used to map stack traces for errors coming from this test, or
-  /// `null`.
-  final StackTraceMapper _mapper;
-
   /// The channel used to communicate with the test's [IframeListener].
   final MultiChannel _channel;
 
-  IframeTest(this.name, this.metadata, this._channel, {StackTraceMapper mapper})
-      : _mapper = mapper;
+  RunnerTest(this.name, this.metadata, this._channel);
 
   LiveTest load(Suite suite, {Iterable<Group> groups}) {
     var controller;
@@ -49,8 +43,6 @@ class IframeTest extends Test {
           var asyncError = RemoteException.deserialize(message['error']);
 
           var stackTrace = asyncError.stackTrace;
-          if (_mapper != null) stackTrace = _mapper.mapStackTrace(stackTrace);
-
           controller.addError(asyncError.error, stackTrace);
         } else if (message['type'] == 'state-change') {
           controller.setState(
@@ -90,8 +82,7 @@ class IframeTest extends Test {
 
   Test forPlatform(TestPlatform platform, {OperatingSystem os}) {
     if (!metadata.testOn.evaluate(platform, os: os)) return null;
-    return new IframeTest(
-        name, metadata.forPlatform(platform, os: os), _channel,
-        mapper: _mapper);
+    return new RunnerTest(
+        name, metadata.forPlatform(platform, os: os), _channel);
   }
 }