Remove HistoryPublisher code.

chrome/browser/history/history_backend.h

Index: chrome/browser/history/history_backend.h
diff --git a/chrome/browser/history/history_backend.h b/chrome/browser/history/history_backend.h
index 433aa1643f94757de0c065d67bf54c8925ae8a20..a4971b2f14464a97dccc87aedf1d28d7e26d8ffa 100644
--- a/chrome/browser/history/history_backend.h
+++ b/chrome/browser/history/history_backend.h
@@ -37,8 +37,6 @@ class AndroidProviderBackend;
 #endif
 
 class CommitLaterTask;
-class HistoryPublisher;
-class PageCollector;
 class VisitFilter;
 struct DownloadRow;
 
@@ -159,11 +157,6 @@ class HistoryBackend : public base::RefCountedThreadSafe<HistoryBackend>,
                              const GURL& url,
                              base::Time end_ts);
 
-
-  // Indexing ------------------------------------------------------------------
-
-  void SetPageContents(const GURL& url, const string16& contents);
-
   // Querying ------------------------------------------------------------------
 
   // ScheduleAutocomplete() never frees |provider| (which is globally live).
@@ -846,9 +839,6 @@ class HistoryBackend : public base::RefCountedThreadSafe<HistoryBackend>,
   // Stores old history in a larger, slower database.
   scoped_ptr<ArchivedDatabase> archived_db_;
 
-  // Helper to collect page data for vending to history_publisher_.
-  scoped_ptr<PageCollector> page_collector_;
-
   // Manages expiration between the various databases.
   ExpireHistoryBackend expirer_;
 
@@ -895,10 +885,6 @@ class HistoryBackend : public base::RefCountedThreadSafe<HistoryBackend>,
   // loaded.
   BookmarkService* bookmark_service_;
 
-  // Publishes the history to all indexers which are registered to receive
-  // history data from us. Can be NULL if there are no listeners.
-  scoped_ptr<HistoryPublisher> history_publisher_;
-
 #if defined(OS_ANDROID)
   // Used to provide the Android ContentProvider APIs.
   scoped_ptr<AndroidProviderBackend> android_provider_backend_;