Chrome Version: 66.0.3357.0
OS: linux

What steps will reproduce the problem?
(1) Build tip of tree (currently at commit 5381e7250d90e33ed29d7ce3df188c401bc4ad67)
(2) Enable dcheck
(3) Build and navigate to w3 media events site: https://www.w3.org/2010/05/video/mediaevents.html

What is the expected result?
No crash.

What happens instead?
NOTREACHED() hit here: https://cs.chromium.org/chromium/src/services/service_manager/service_manager.cc?l=154

The Service Manager prevented service "content_renderer" from binding interface "safe_browsing::mojom::PhishingDetectorClient" in target service "content_browser". You probably need to update one or more service manifests to ensure that "content_browser" exposes "safe_browsing::mojom::PhishingDetectorClient" through a capability and that "content_renderer" requires that capability from the "content_browser" service.