Bug 704320 - Add tests for meta referrer implementation (r=bz)
Bug 704320 - Parse and implement meta tag-based referrer policies for documents and nsHttpChannels. (r=bz,mcmanus)
Bug 704320 - Changes for HttpChannelParent. (r=mcmanus)
Bug 704320 - Implement referrer policy support for script loads. (r=jst)
Bug 704320 - Add referrer policy support to stylesheet and CSS loads and fonts.  (r=bz)
Bug 704320 - apply referrer policies to image loads (r=seth)
Bug 704320 - content/dom changes for meta referrer support. (r=jst)

This enables referrer policies for:
- EventSource         (content/base/src/EventSource)
- XMLHttpRequest      (content/base/src/nsXMLHttpRequest)
- HTML media elements (content/html/content/src/HTMLMediaElement)
- window.open         (embedding/components/windowwatcher)
- window.location     (dom/base/nsLocation)
Bug 704320 - enable meta referrer policies for object loads. (r=jst)
Bug 704320 - Add referrer policy support for nsIWebBrowserPersist and its consumers. (r=jst)
Bug 704320 - Referrer policy support in nsSyncLoadService. (r=peterv)
Bug 704320 - Add tests for whether preloaded resources can be reused after script-added meta referrer policy is added to a document. (r=bz)
Bug 704320 - Tests for meta referrer policy whitespace trimming and invalid policies. (r=bz)