Added a test for the iframe element sandbox attribute, allow-script
Add some cases for the embed element

Signed-off-by: xiaojunwu <xiaojunx.a.wu@intel.com>
Refine tests for the embed element

- Add _manual suffix to reftest filename
- Add a reference file embed_represent_nothing_ref.html
- Remove embed_pass_parameters.html and embed_type_unmatch.html
  as not good design
Update according to the new template

1. Update the code format
2. Update the reference specification

Signed-off-by: xiaojunwu <xiaojunx.a.wu@intel.com>
Add test for the URLs resolving
Add tests to check resolving URLs in xhtml document
Move tests to web-platform-tests/url directory
Update last patch to remove the files under html/~
Resolve issues

1. Update the urltestdata.txt
2. Add xml version for a-element.html
3. Remove resolve-urls.html and resolve-urls.xhmtl

Signed-off-by: xiaojunwu <xiaojunx.a.wu@intel.com>
Resolve issues

1. Add title
2. Update the setBase function, etc

Signed-off-by: xiaojunwu <xiaojunx.a.wu@intel.com>
Add tests for document base URL

Base on section 2.5 URLs

Signed-off-by: xiaojunwu <xiaojunx.a.wu@intel.com>
Add tests for the document level focus APIs
Resolve issues according to review comments

1. Rename files
2. Change titles
3. Remove the tests duplicate with reflection

Signed-off-by: xiaojunwu <xiaojunx.a.wu@intel.com>
move Opera's media tests
Check for TypeError for invalid enum values as function parameters
Use instanceof to test object type instead testing random properties
Test that undefined behaves like a missing parameter
Correctly escape \u0000 in a test name
Fix indentation of 'use strict'
Move files left behind in old-tests/submission/Opera/media/