Move AutocompleteHistoryManager into chrome/browser/autofill/ as it is

chrome/browser/autofill/autocomplete_history_manager.h

Index: chrome/browser/autofill/autocomplete_history_manager.h
diff --git a/chrome/browser/autocomplete_history_manager.h b/chrome/browser/autofill/autocomplete_history_manager.h
similarity index 94%
rename from chrome/browser/autocomplete_history_manager.h
rename to chrome/browser/autofill/autocomplete_history_manager.h
index 61a4da8aa9ad5b23c60167ece32c68480e087d7b..fd387016467f1cd3609bf14c9639e0ea00b4a01f 100644
--- a/chrome/browser/autocomplete_history_manager.h
+++ b/chrome/browser/autofill/autocomplete_history_manager.h
@@ -2,8 +2,8 @@
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
-#ifndef CHROME_BROWSER_AUTOCOMPLETE_HISTORY_MANAGER_H_
-#define CHROME_BROWSER_AUTOCOMPLETE_HISTORY_MANAGER_H_
+#ifndef CHROME_BROWSER_AUTOFILL_AUTOCOMPLETE_HISTORY_MANAGER_H_
+#define CHROME_BROWSER_AUTOFILL_AUTOCOMPLETE_HISTORY_MANAGER_H_
 
 #include <vector>
 
@@ -98,4 +98,4 @@ class AutocompleteHistoryManager : public content::WebContentsObserver,
   DISALLOW_COPY_AND_ASSIGN(AutocompleteHistoryManager);
 };
 
-#endif  // CHROME_BROWSER_AUTOCOMPLETE_HISTORY_MANAGER_H_
+#endif  // CHROME_BROWSER_AUTOFILL_AUTOCOMPLETE_HISTORY_MANAGER_H_