Add browser tags to all of our tests.

test/runner/pause_after_load_test.dart

 // Copyright (c) 2015, the Dart project authors.  Please see the AUTHORS file
 // for details. All rights reserved. Use of this source code is governed by a
 // BSD-style license that can be found in the LICENSE file.
 
 @TestOn("vm")
 
 import 'dart:async';
 import 'dart:io';
 
 import 'package:scheduled_test/descriptor.dart' as d;
@@ skipping 68 matching lines @@
 
       // Wait a little bit to be sure that the tests don't start running without
       // our input.
       await new Future.delayed(new Duration(seconds: 2));
       expect(nextLineFired, isFalse);
     });
 
     test.writeLine('');
     test.stdout.expect(consumeThrough(contains("+2: All tests passed!")));
     test.shouldExit(0);
-  });
+  }, tags: 'dartium');
 
   test("pauses the test runner for each platform until the user presses enter",
       () {
     d.file("test.dart", """
 import 'package:test/test.dart';
 
 void main() {
   print('loaded test!');
 
   test("success", () {});
@@ skipping 41 matching lines @@
 
       // Wait a little bit to be sure that the tests don't start running without
       // our input.
       await new Future.delayed(new Duration(seconds: 2));
       expect(nextLineFired, isFalse);
     });
 
     test.writeLine('');
     test.stdout.expect(consumeThrough(contains("+2: All tests passed!")));
     test.shouldExit(0);
-  });
+  }, tags: ['dartium', 'chrome']);
 
   test("prints a warning and doesn't pause for unsupported platforms", () {
     d.file("test.dart", """
 import 'package:test/test.dart';
 
 void main() {
   test("success", () {});
 }
 """).create();
 
@@ skipping 43 matching lines @@
     });
 
     test.writeLine('');
 
     test.stdout.expect(containsInOrder([
       "loaded test!",
       "+1: [VM] success",
       "+2: All tests passed!"
     ]));
     test.shouldExit(0);
-  });
+  }, tags: 'dartium');
 
   test("stops immediately if killed while paused", () {
     d.file("test.dart", """
 import 'package:test/test.dart';
 
 void main() {
   print('loaded test!');
 
   test("success", () {});
 }
 """).create();
 
     var test = runTest(["--pause-after-load", "-p", "dartium", "test.dart"]);
     test.stdout.expect(consumeThrough("loaded test!"));
     test.stdout.expect(consumeThrough(inOrder([
       startsWith("Observatory URL: "),
       "The test runner is paused. Open the dev console in Dartium or the "
           "Observatory and set breakpoints.",
       "Once you're finished, return to this terminal and press Enter."
     ])));
 
     test.signal(ProcessSignal.SIGTERM);
     test.shouldExit();
     test.stderr.expect(isDone);
-  }, testOn: "!windows");
+  }, tags: 'dartium', testOn: "!windows");
 
   test("disables timeouts", () {
     d.file("test.dart", """
 import 'dart:async';
 
 import 'package:test/test.dart';
 
 void main() {
   print('loaded test 1!');
 
@@ skipping 22 matching lines @@
 
       // Wait a little bit to be sure that the tests don't start running without
       // our input.
       await new Future.delayed(new Duration(seconds: 2));
       expect(nextLineFired, isFalse);
     });
 
     test.writeLine('');
     test.stdout.expect(consumeThrough(contains("+1: All tests passed!")));
     test.shouldExit(0);
-  });
+  }, tags: 'dartium');
 
   // Regression test for #304.
   test("supports test name patterns", () {
     d.file("test.dart", """
 import 'package:test/test.dart';
 
 void main() {
   print('loaded test 1!');
 
   test("failure 1", () {});
@@ skipping 21 matching lines @@
 
       // Wait a little bit to be sure that the tests don't start running without
       // our input.
       await new Future.delayed(new Duration(seconds: 2));
       expect(nextLineFired, isFalse);
     });
 
     test.writeLine('');
     test.stdout.expect(consumeThrough(contains("+1: All tests passed!")));
     test.shouldExit(0);
-  });
+  }, tags: 'dartium');
 }