Cautionary tale about optimizing path manipulation.

BUG=https://code.google.com/p/dart/issues/detail?id=20628
R=nweiz@google.com

Review URL: https://codereview.chromium.org//485893008

git-svn-id: https://dart.googlecode.com/svn/branches/bleeding_edge@39502 260f80e4-7a28-3924-810f-c04153c831b5
Add default style to new Polymer elements.

BUG=20598 .
R=sigmund@google.com

Review URL: https://codereview.chromium.org//497813002

git-svn-id: https://dart.googlecode.com/svn/branches/bleeding_edge@39503 260f80e4-7a28-3924-810f-c04153c831b5
Attempt to reduce Dartium debug bot redness.

R=asiva@google.com

Review URL: https://codereview.chromium.org//502603002

git-svn-id: https://dart.googlecode.com/svn/branches/bleeding_edge@39504 260f80e4-7a28-3924-810f-c04153c831b5
BUG=
R=sra@google.com

Review URL: https://codereview.chromium.org//490323002

git-svn-id: https://dart.googlecode.com/svn/branches/bleeding_edge@39505 260f80e4-7a28-3924-810f-c04153c831b5
Test editor double clicking int DartDoc comments

Apparently, functional testing tools are not intended for testing text
editors. The amount of work it took to simply produce a double-click
in text was just silly.

R=scheglov@google.com

Review URL: https://codereview.chromium.org//486153003

git-svn-id: https://dart.googlecode.com/svn/branches/bleeding_edge@39506 260f80e4-7a28-3924-810f-c04153c831b5