google/perf_api.dart — pull request #9 by vicb (2014-08-29 11:22:31+00:00)
Title: feat(Console Profiler): Allow multiple timers with the same name

@pavelgj does "// TODO: change this to use a multimap." means that we want to support multiple timers with the same name ?

If this is the case this is what I implemented in this PR. It passes smoke tests but I'll write unit tests once you confirm the expected behavior.

ref smoke test
```dart
var profiler = new ConsoleProfiler();

profiler.startTimer('foo', '1');
profiler.startTimer('bar', '1');
profiler.startTimer('foo', '2');

profiler.stopTimer('foo');
profiler.stopTimer('bar');
```