Plumbing for safe browsing reporting for Android WebView.
Provide the necessary hooks for the reporting to work in
Android WebView. In particular
- implement AwSafeBrowsingUIManager::SendSerializedThreatDetails,
- create ping manager and url request context getter on IO/UI threads,
- create trigger_manager and expose in AwBrowserContext,
- add/create DIR_SAFE_BROWSING for storing safe browsing cookies,
- provide Android WebView specific protocol config client name (crbug.com/732373),
- move the relevant constants from safebrowsing_service to component.
TODO (in a follow-up patch):
- invoke {Start,Finish}CollectingThreatDetails() from the AwSafeBrowsingBlockingPage (crbug.com/731747)
Design doc: https://goo.gl/TfoY9K, section 3.
BUG=700351, 688629, 732373
Review-Url: https://codereview.chromium.org/2932703003
Cr-Commit-Position: refs/heads/master@{#479468}
12 files changed
