Support for different weight-functions for time-slicing.

chrome/browser/ui/webui/ntp/suggestions_source_top_sites.h

Index: chrome/browser/ui/webui/ntp/suggestions_source_top_sites.h
diff --git a/chrome/browser/ui/webui/ntp/suggestions_source_top_sites.h b/chrome/browser/ui/webui/ntp/suggestions_source_top_sites.h
index 7a060ebd2477dd900e9426f1ccceb3e22e4b2bce..dfa7d6ab836ecb6036ec7595adfb067616ea55e2 100644
--- a/chrome/browser/ui/webui/ntp/suggestions_source_top_sites.h
+++ b/chrome/browser/ui/webui/ntp/suggestions_source_top_sites.h
@@ -10,6 +10,7 @@
 
 #include "chrome/browser/cancelable_request.h"
 #include "chrome/browser/history/history_types.h"
+#include "chrome/browser/history/visit_filter.h"
 #include "chrome/browser/ui/webui/ntp/suggestions_source.h"
 
 class SuggestionsCombiner;
@@ -39,6 +40,16 @@ class SuggestionsSourceTopSites : public SuggestionsSource {
       const history::FilteredURLList& data);
 
  private:
+
+  // Gets the sorting order from the command-line arguments. Defaults to
+  // |ORDER_BY_RECENCY| if there are no command-line argument specifying a
+  // sorting order.
+  static history::VisitFilter::SortingOrder GetSortingOrder();
+
+  // Gets the filter width from the command-line arguments. Defaults to one
+  // hour if there are no command-line argument setting the filter width.
+  static base::TimeDelta GetFilterWidth();
+
   // Our combiner.
   SuggestionsCombiner* combiner_;