[Mac] Refactor location-bar autocomplete cell classes.

chrome/browser/cocoa/autocomplete_text_field.h

Index: chrome/browser/cocoa/autocomplete_text_field.h
diff --git a/chrome/browser/cocoa/autocomplete_text_field.h b/chrome/browser/cocoa/autocomplete_text_field.h
new file mode 100644
index 0000000000000000000000000000000000000000..709bd17aa756de995df15d5dacb06b6af494a7de
--- /dev/null
+++ b/chrome/browser/cocoa/autocomplete_text_field.h
@@ -0,0 +1,19 @@
+// Copyright (c) 2009 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_COCOA_AUTOCOMPLETE_TEXT_FIELD_H_
+#define CHROME_BROWSER_COCOA_AUTOCOMPLETE_TEXT_FIELD_H_
+
+#import <Cocoa/Cocoa.h>
+
+// TODO(shess): This class will add decorations to support keyword
+// search and hints.  Adding as a stub so that I can clean up naming
+// around this code all at once before layering other changes over in
+// parallel.
+
+@interface AutocompleteTextField : NSTextField {
+}
+@end
+
+#endif  // CHROME_BROWSER_COCOA_AUTOCOMPLETE_TEXT_FIELD_H_