This is an updated version of https://codereview.chromium.org/16374007/
This is an updated version of https://codereview.chromium.org/16374007/

Original submission is the first patch, fixes are the second.

There were two issues with the original-
  - Issue with URI sanitization where relative URIs on IE were being dropped.
  - Analyzer issue on missing members for CustomElement.

BUG=
R=jmesserly@google.com

Review URL: https://codereview.chromium.org//23525003

git-svn-id: b889c0189f1adfea19efba192a3d7a5b889e4120@26757 260f80e4-7a28-3924-810f-c04153c831b5

greglittlefield-wf/test,d2m/test,grouma/test,Pacane/test,kevmoo/test,Pacane/test,d2m/test,kevmoo/test,greglittlefield-wf/test,grouma/test,iglherme/Guttiest,grouma/test,iglherme/Guttiest,apwilson/test,apwilson/test,apwilson/test,greglittlefield-wf/test,d2m/test,kevmoo/test,iglherme/Guttiest