media: Support CDM_11 interface

- Roll src/media/cdm/api/ 57e20546b..163f87884 (1 commit)
    2018-04-17 xhwang cdm: Add CDM_11 interface

- Add CDM_11 support. But since the interface is still in development
  the support is not enabled by default.

- Update CDM_10 implementation to adapt to the interface change that
  RequestCdmProxy() has been removed. CDM_10 support is not enabled
  by default yet.

- Update browser_tests to run tests using CDM_11.

Bug: 733821
Change-Id: Id0c51468f1d426bb7445398862e8f8ffedad34a7
Reviewed-on: https://chromium-review.googlesource.com/1020881
Reviewed-by: John Rummell <[email protected]>
Commit-Queue: Xiaohan Wang <[email protected]>
Cr-Commit-Position: refs/heads/master@{#552489}
10 files changed