GetMostVisitedThumbnailsOnDBThread   44 chrome/browser/history/top_sites_backend.cc       base::Bind(&TopSitesBackend::GetMostVisitedThumbnailsOnDBThread,
GetMostVisitedThumbnailsOnDBThread   74 chrome/browser/history/top_sites_backend.h   void GetMostVisitedThumbnailsOnDBThread(