Bug 975228 - Create logic to merge frecency-pages and Tiles (Tile equiv 1000 frecency) [r=adw]
Use DirectoryLinksProvider for Firefox and make PlacesProvider match in expected Links format.
Make sure there's at least 2 of each type so Telemetry doesn't know for sure which links were used.
Bug 975228 - Replace all directoryLinks with mozilla.org for now to land without leak failures.
Bug 972930 - Clicks (raw number) for tiles [r=adw]
Provide an array of expected directory link types to count how many were clicked.
Bug 972936 - Overall impressions metrics for New Tab [r=adw]
Add a histogram for each of the 3 directory link types and count how many were shown.
Bug 974736 - Add icon to title bar of Sponsored Tiles [r=adw]
Also fixes bug 976638 by moving controls.png to the shared directory.
Add an always visible sponsored icon for tiles that are type=sponsored. Also add ignorehover to the cell to prevent styling when pointing at the sponsored icon that happens to be a child of the cell.
Bug 975210 - Augment Site._render logic to allow for Sponsored Tiles images & text [r=adw]
For type={affiliate,organic,sponsored} tiles, show the appropriate imageURISpec instead of thumbnail.
Bug 974745 - Create click event on Sponsored Tiles to show explanation panel [r=adw]
Have the page know how to show a panel on a sponsored icon click.