Revert 111378 - HQP Refactoring (in Preparation for SQLite Cache)

chrome/browser/history/in_memory_history_backend.h

Index: chrome/browser/history/in_memory_history_backend.h
===================================================================
--- chrome/browser/history/in_memory_history_backend.h	(revision 111481)
+++ chrome/browser/history/in_memory_history_backend.h	(working copy)
@@ -69,6 +69,9 @@
                        const content::NotificationSource& source,
                        const content::NotificationDetails& details) OVERRIDE;
 
+  // Return the quick history index.
+  history::InMemoryURLIndex* InMemoryIndex() const { return index_.get(); }
+
  private:
   FRIEND_TEST_ALL_PREFIXES(HistoryBackendTest, DeleteAll);
 
@@ -92,6 +95,9 @@
   // initialization.
   Profile* profile_;
 
+  // The index used for quick history lookups.
+  scoped_ptr<history::InMemoryURLIndex> index_;
+
   DISALLOW_COPY_AND_ASSIGN(InMemoryHistoryBackend);
 };