Componentize HistoryQuickProvider and its supporting cast

components/omnibox/in_memory_url_index.h

 // Copyright (c) 2012 The Chromium Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
-#ifndef CHROME_BROWSER_AUTOCOMPLETE_IN_MEMORY_URL_INDEX_H_
-#define CHROME_BROWSER_AUTOCOMPLETE_IN_MEMORY_URL_INDEX_H_
+#ifndef COMPONENTS_OMNIBOX_IN_MEMORY_URL_INDEX_H_
+#define COMPONENTS_OMNIBOX_IN_MEMORY_URL_INDEX_H_
 
 #include <functional>
 #include <map>
 #include <set>
 #include <string>
 #include <vector>
 
 #include "base/basictypes.h"
 #include "base/files/file_path.h"
 #include "base/gtest_prod_util.h"
@@ skipping 296 matching lines @@
 
   // This flag is set to true if we want to listen to the
   // HistoryServiceLoaded Notification.
   bool listen_to_history_service_loaded_;
 
   base::ThreadChecker thread_checker_;
 
   DISALLOW_COPY_AND_ASSIGN(InMemoryURLIndex);
 };
 
-#endif  // CHROME_BROWSER_AUTOCOMPLETE_IN_MEMORY_URL_INDEX_H_
+#endif  // COMPONENTS_OMNIBOX_IN_MEMORY_URL_INDEX_H_