The system browser should record all URL navigations as visits in the Places DataStore and create a new place and/or icon if necessary. This data will be used by the Rocketbar search app. Putting this in the Browser Chrome component for now but not sure yet where the code will live.

Initial patch which stores a visit on every mozbrowserlocationchange and stores the title on every mozbrowsertitlechange. Currently this only works for anything with the navigation bar (Browser2, e.me apps, homescreen bookmarks etc.) I think we should figure out a way for this to work for installed apps too so that visits to apps can be added to the Places database. That would mean we could use the Places database to rank apps and bookmarks against each other using Frecency and the Rocketbar would only have one source to search instead of two.

Rebasing against master because a rebase of the rocketbar2 branch broke all downstream branches. This depends on bug 946778 so land that first, but can be landed safely independent of the rocketbar2 branch. The rocketbar2 branch can pick it up in the next merge from master.

Comment on attachment 8347985 [details] https://github.com/mozilla-b2g/gaia/pull/14703 So this is good, the functionality will likely go behind the rocketbar preference and it needs rebased against a slightly different places API, so will steal and follow up, but essentially the same

Made more sense to implement this as a single patch