Added a test for the iframe element sandbox attribute, allow-script
[TTWF Shanghai] Added idlharness test for FileAPI
Update FileAPI IDL to latest editor's draft
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>
Update idlharness tests to reflect #388 cleanup
Add tests for document base URL

Base on section 2.5 URLs

Signed-off-by: xiaojunwu <xiaojunx.a.wu@intel.com>
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>
Split up the FileAPI idlharness test case in a manual and an autoomated part.
Remove trailing whitespace from the FileAPI interfaces tests.
Removed a test using an obsolete attribute

This test is using .olderShadowRoot which has been removed from the
spec. Therefore this test is obsolete.
These tests are using an obsolete attribute

These tests are using .olderShadowRoot which has been removed from the
spec. Therefore these are obsolete.
Nits

Corrected typos; ids match variable for readability (not needed per say
given Shadow DOM's scoping but...)
Adjusted queryselector to operate on the SR

I assume that querying from document into a Shadow Root isn't expected
to work. Made the query to operate on the SR which fixes the failing
test(s).
Rewritten to follow the latest spec

Adjusted expectations.
Obsolete

(This test is exercising /select/)
Removed incorrect test

As per the conclusion at https://bugs.webkit.org/show_bug.cgi?id=103479
this test was incorrect.
Obsolete tests

These tests excercice something that was removed from the spec.
Adding WebDriver Modal tests

Signed-off-by: AutomatedTester <dburns@mozilla.com>

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