Sync with 834ca0a
Sync with 834ca0a

Synced with dart-lang/site-webdev 5-dev branch, commit 834ca0a:
https://github.com/dart-lang/site-webdev/tree/834ca0a1386e9fc208a0e05160b0fbc684454778/examples/ng/doc/structural-directives

angular-examples/structural-directives,angular-examples/structural-directives,googlearchive/structural-directives,googlearchive/structural-directives