Bug 1010872 - Stop preserving Global bindings. r=bz.

--HG--
extra : rebase_source : 23046f48a92cd27dd3c5ee6fc60c93b01067bb03
Bug 1010955 - Fix tests so they'll work with Window on WebIDL bindings. r=bz.

--HG--
rename : content/media/webspeech/synth/ipc/test/test_ipc.html => content/media/webspeech/synth/ipc/test/file_ipc.html
extra : rebase_source : c7dc7fc44717ad6bf5381ecb8a537bf698ee962e