Add support for running browser tests to the test runner.

lib/src/runner/browser/browser_manager.dart

Index: lib/src/runner/browser/browser_manager.dart
diff --git a/lib/src/runner/browser/browser_manager.dart b/lib/src/runner/browser/browser_manager.dart
index 44851f0b5525e2ad6fb4f1fc129338c0a70471e0..b049dd2bf542ea67990b95f9c542111c7831f70c 100644
--- a/lib/src/runner/browser/browser_manager.dart
+++ b/lib/src/runner/browser/browser_manager.dart
@@ -59,10 +59,10 @@ class BrowserManager {
             asyncError.stackTrace);
       }
 
-      return new Suite(path, response["tests"].map((test) {
+      return new Suite(response["tests"].map((test) {
         var testChannel = suiteChannel.virtualChannel(test['channel']);
         return new IframeTest(test['name'], testChannel);
-      }));
+      }), path: path, platform: "Chrome");
     });
   }
 }