GitLab

CDM on Mac ARM is not ready yet. When requestMediaKeySystemAccess()
fails on Mac ARM, we reject the promise with "Unsupported platform" and
trigger an infobar to notify user. The infobar will be triggered at most
once per render process.

Since the infobar can only be triggered in the browser process, a new
mojo service CdmInfobarService is added. Note that even though there
already exists KeySystemSupport service, which is also implemented in
the browser process, we cannot trigger the infobar there, because the
infobar requires a WebContents context, while the KeySystemSupport
service is bound to a render process instead of a render frame.

Change-Id: Ia85a1f2b097b0c2d26d12cc3e9363c34a25691a3
Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/2404716Reviewed-by: Daniel Cheng <dcheng@chromium.org>
Reviewed-by: Elly Fong-Jones <ellyjones@chromium.org>
Reviewed-by: John Rummell <jrummell@chromium.org>
Commit-Queue: Xiaohan Wang <xhwang@chromium.org>
Cr-Commit-Position: refs/heads/master@{#807631}