Bug 975786 - Add FHR search source for about:newtab. r=rnewman
Bug 962490 - Add a search field to the new tab page (part 1: ContentSearch). r=felipe
Bug 962490 - Add a search field to the new tab page (part 2: about:newtab changes). r=ttaubert
Bug 962490 - Add a search field to the new tab page (part 3: search component tests). r=gavin