Update status for html/mouse_event_test on content_shell

BUG=dartbug.com/20437
TBR=efortuna@google.com

Review URL: https://codereview.chromium.org//459613002

git-svn-id: https://dart.googlecode.com/svn/branches/bleeding_edge@39062 260f80e4-7a28-3924-810f-c04153c831b5
refactor completion manager to have 2 phases
- refactor CompletionManager to have 2 passes so that some results can be quickly sent to client
- move DartCompletionManager into separate file

BUG=
R=scheglov@google.com

Review URL: https://codereview.chromium.org//455953002

git-svn-id: https://dart.googlecode.com/svn/branches/bleeding_edge@39063 260f80e4-7a28-3924-810f-c04153c831b5
Rework search_domain_int_test to avoid timeouts.

Now all sub-tests are run using a single analysis server so that the
SDK only needs to be analyzed once.

Reduces test time by about 9x.

R=scheglov@google.com

Review URL: https://codereview.chromium.org//455983002

git-svn-id: https://dart.googlecode.com/svn/branches/bleeding_edge@39064 260f80e4-7a28-3924-810f-c04153c831b5