chromium: Updates, fixes #11492

Built and run Beta and Stable locally. Dev is surrently superseded by Stable so
it doesn't matter much.

- Dev: 47.0.2508.0 -> 48.0.2564.22
- Beta: 46.0.2490.64 -> 48.0.2564.23
- Stable: 45.0.2454.101 -> 47.0.2526.73

Changed the SSL dependencies to the supported configuration on Linux (according
to Torne @Freenode/#chromium-support).

- NSS is a dependency since it is used to access the ceritiface store.
- Dropped system OpenSSL support, the bundled BoringSSL is used.

This probably fixes issue #10555. Note that without this adjustment the build
fails even.

Dropped uneeded old patches.