Replace FTS in the history_service with a brute force text search.

chrome/browser/history/visit_database.h

Index: chrome/browser/history/visit_database.h
diff --git a/chrome/browser/history/visit_database.h b/chrome/browser/history/visit_database.h
index 18efc3c9ca6c2e5c71036e40a70d2f80aed0ee78..effaa8fb7ff977b8776ba33f1f26ce662c9ae9fa 100644
--- a/chrome/browser/history/visit_database.h
+++ b/chrome/browser/history/visit_database.h
@@ -63,6 +63,15 @@ class VisitDatabase {
   // Returns true on success (although there may still be no matches).
   bool GetIndexedVisitsForURL(URLID url_id, VisitVector* visits);
 
+  // Fills in the given vector with the visits for the given page ID which
+  // match the set of options passed, sorted in ascending order of date.
+  //
+  // Returns true if there are more results available, i.e. if the number of
+  // results was restricted by |options.max_count|.
+  bool GetVisitsForURLWithOptions(URLID url_id,
+                                  const QueryOptions& options,
+                                  VisitVector* visits);
+
   // Fills the vector with all visits with times in the given list.
   //
   // The results will be in no particular order.  Also, no duplicate
@@ -202,6 +211,14 @@ class VisitDatabase {
   // hasn't happened yet.
   static bool FillVisitVector(sql::Statement& statement, VisitVector* visits);
 
+  // Convenience to fill a VisitVector while respecting the set of options.
+  // |statement| should order the query decending by visit_time to ensure
+  // correct duplicate management behavior. Assumes that statement.step()
+  // hasn't happened yet.
+  static bool FillVisitVectorWithOptions(sql::Statement& statement,
+                                         const QueryOptions& options,
+                                         VisitVector* visits);
+
   // Called by the derived classes to migrate the older visits table which
   // don't have visit_duration column yet.
   bool MigrateVisitsWithoutDuration();
@@ -216,6 +233,6 @@ class VisitDatabase {
     " id,url,visit_time,from_visit,transition,segment_id,is_indexed," \
     "visit_duration "
 
-}  // history
+}  // namespace history
 
 #endif  // CHROME_BROWSER_HISTORY_VISIT_DATABASE_H_