Sync with 3791031
Sync with 3791031

Synced with dart-lang/site-webdev master branch, commit 3791031:
https://github.com/dart-lang/site-webdev/tree/379103160144c5b39d906aaaec337eac3a5f1a56/examples/ng/doc/server-communication

angular-examples/server-communication,googlearchive/server-communication,googlearchive/server-communication,angular-examples/server-communication