We move MediaKeys::Exception to CdmPromise::Exception.
And we don't need "media/base/media_keys.h" in "media/base/cdm_promise.h" and "media/base/cdm_callback_promise.h".
But bot fail to compile on win_clang and win_chromium_compile_dbg_ng.
This issue should be solved.
Comment 1 by xhw...@chromium.org
, Oct 17 2016