Fix a bad merge in pkg/stack_trace.

TBR
R=rnystrom@google.com

Review URL: https://codereview.chromium.org//22880030

git-svn-id: https://dart.googlecode.com/svn/branches/bleeding_edge/dart/pkg/stack_trace@26467 260f80e4-7a28-3924-810f-c04153c831b5

pkgs/stack_trace/lib/src/trace.dart

diff --git a/pkgs/stack_trace/lib/src/trace.dart b/pkgs/stack_trace/lib/src/trace.dart
index 46baada..19f0a12 100644
--- a/pkgs/stack_trace/lib/src/trace.dart
+++ b/pkgs/stack_trace/lib/src/trace.dart
@@ -82,9 +82,9 @@
   factory Trace.parse(String trace) {
     try {
       if (trace.isEmpty) return new Trace(<Frame>[]);
-      if (trace.startsWith("Error\n")) return new Trace.parseV8(trace);
+      if (trace.contains(_v8Trace)) return new Trace.parseV8(trace);
       // Valid Safari traces are a superset of valid Firefox traces.
-      if (trace.contains(_firefoxTrace)) return new Trace.parseFirefox(trace);
+      if (trace.contains(_firefoxTrace)) return new Trace.parseSafari(trace);
       if (trace.contains(_friendlyTrace)) return new Trace.parseFriendly(trace);
 
       // Default to parsing the stack trace as a VM trace. This is also hit on