
Adds the HTMLImageElement 'crossOrigin' property to the externs.
This is a new tag being added to the spec to help tighten security regarding
handling of cross-domain resources.  More information here:

http://www.whatwg.org/specs/web-apps/current-work/multipage/embedded-content-1.html#attr-img-crossorigin

Specifically, recent updates to Chrome and WebGL have made it so that an image
fetched without the crossOrigin property cannot be uploaded to a texture for
display via WebGL.  This plugs the cross-domain image stealing vulnerability
described here:
http://contextis.co.uk/resources/blog/webgl/
And demoed here:
http://contextis.co.uk/resources/blog/webgl/poc/index.html

R=nicksantos
DELTA=6  (6 added, 0 deleted, 0 changed)


Revision created by MOE tool push_codebase.
MOE_MIGRATION=2367


git-svn-id: 818616af560c21f974e3119d89e3310384da871a@1196 b0f006be-c8cd-11de-a2e8-8d36a3108c74

h4ck3rm1k3/javascript-closure-compiler-git,bramstein/closure-compiler-inline,adinardi/google-closure-compiler,dound/google-closure-compiler,knutwalker/google-closure-compiler,h4ck3rm1k3/javascript-closure-compiler-git,knutwalker/google-closure-compiler,adinardi/google-closure-compiler,bramstein/closure-compiler-inline,dound/google-closure-compiler