Add a VM page to the observatory.

Add a VM page to the observatory.

Make the VM a ServiceObject.  Some refactoring in the ServiceObject
implementation.

IsolateList is no longer a ServiceObject.  It should eventually become more like our caches.

Support the /vm request in the vm.  Remove isolate list request.

Improvements to Isolate::PrintToJSONStream: always provide a
reasonable name.  Use the same code to produce isolate refs and
non-refs.

Improve isolate status message when the isolate is paused at
start/exit.  Add a resume link to the isolate view.

Add a navbar to the error page so that dartium users are less likely
to get stuck.

R=johnmccutchan@google.com

Committed: https://code.google.com/p/dart/source/detail?r=34204

[Cutch, 2014-03-20 18:25:56]

lgtm with comments

https://codereview.chromium.org/206213004/diff/40001/runtime/bin/vmservice/cl...
File runtime/bin/vmservice/client/lib/elements.dart (right):

https://codereview.chromium.org/206213004/diff/40001/runtime/bin/vmservice/cl...
runtime/bin/vmservice/client/lib/elements.dart:39: export
'package:observatory/src/elements/vm_view.dart';
blank line at end?

https://codereview.chromium.org/206213004/diff/40001/runtime/bin/vmservice/cl...
File runtime/bin/vmservice/client/lib/src/service/object.dart (right):

https://codereview.chromium.org/206213004/diff/40001/runtime/bin/vmservice/cl...
runtime/bin/vmservice/client/lib/src/service/object.dart:186: print("NO MATCH");
Logger.root.warning ?

https://codereview.chromium.org/206213004/diff/40001/runtime/bin/vmservice/cl...
runtime/bin/vmservice/client/lib/src/service/object.dart:253: print("$map");
remove?

[turnidge, 2014-03-20 19:08:02]

https://codereview.chromium.org/206213004/diff/40001/runtime/bin/vmservice/cl...
File runtime/bin/vmservice/client/lib/elements.dart (right):

https://codereview.chromium.org/206213004/diff/40001/runtime/bin/vmservice/cl...
runtime/bin/vmservice/client/lib/elements.dart:39: export
'package:observatory/src/elements/vm_view.dart';
On 2014/03/20 18:25:56, Cutch wrote:
> blank line at end?

Done.

https://codereview.chromium.org/206213004/diff/40001/runtime/bin/vmservice/cl...
File runtime/bin/vmservice/client/lib/src/service/object.dart (right):

https://codereview.chromium.org/206213004/diff/40001/runtime/bin/vmservice/cl...
runtime/bin/vmservice/client/lib/src/service/object.dart:186: print("NO MATCH");
On 2014/03/20 18:25:56, Cutch wrote:
> Logger.root.warning ?

Actually this happens legitimately on the /vm page itself.

https://codereview.chromium.org/206213004/diff/40001/runtime/bin/vmservice/cl...
runtime/bin/vmservice/client/lib/src/service/object.dart:253: print("$map");
On 2014/03/20 18:25:56, Cutch wrote:
> remove?

Done.

[turnidge, 2014-03-20 21:00:32]

Committed patchset #5 manually as r34204 (presubmit successful).