Add responseType='arraybuffer' support to XHR

Add responseType='arraybuffer' support to XHR

Also moved existing XHR tests from tests/services
to tests/framework to better match the location
of the XHR code itself.

R=ojan@chromium.org

Committed: https://chromium.googlesource.com/external/mojo/+/e37f6b762128596b7c6c6cf54e91434bf4875894

[eseidel, 2014-12-12 19:08:16]

ptal

[ojan, 2014-12-12 19:11:27]

ojan@chromium.org changed reviewers:
+ ojan@chromium.org

[ojan, 2014-12-12 19:11:27]

lgtm

Feel free to fix the comments now or just add TODOs.

https://codereview.chromium.org/805503002/diff/20001/sky/framework/xmlhttpreq...
File sky/framework/xmlhttprequest.sky (right):

https://codereview.chromium.org/805503002/diff/20001/sky/framework/xmlhttpreq...
sky/framework/xmlhttprequest.sky:27: this.responseType = 'text'; // Only text
and arraybuffer support for now.
The default responseType is empty string:
https://xhr.spec.whatwg.org/#the-responsetype-attribute.

https://codereview.chromium.org/805503002/diff/20001/sky/framework/xmlhttpreq...
sky/framework/xmlhttprequest.sky:53: throw 'Unknown responseType ' +
this.responseType;
If the responseType is the empty string, then you're supposed to return
this.responseText.

https://xhr.spec.whatwg.org/#the-response-attribute

[eseidel, 2014-12-12 20:03:54]

Committed patchset #4 (id:20002) manually as
e37f6b762128596b7c6c6cf54e91434bf4875894 (presubmit successful).