With libcurl, HttpFetcher now supports timeout and https.
Two additional changes:
1. Remove happyhttp which is no longer needed;
2. Add README.packager for curl
Bug: 13658515
Bug: 14301830
Change-Id: I13c2835e7feca9abf36e5bb8f7bc35a7db9ec94c
The warnings and warnings-as-errors are enabled by set chromium_code to
1. Chromium build disables warnings and warnings-as-errors by default
on external contents.
And fix the errors with them enabled. Mostly defined but not used,
sign-unsign comparison, unsigned string formatting, and return value not
used etc.
Change-Id: I305b63924955a84172e98e0ebfe5aba0f11bdb37