Conditionally draw a bezel below text fields, used for the omnibox....

chrome/browser/cocoa/styled_text_field_cell.h

 // 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_STYLED_TEXT_FIELD_CELL_H_
+#define CHROME_BROWSER_COCOA_STYLED_TEXT_FIELD_CELL_H_
+
 #import <Cocoa/Cocoa.h>
 
 // StyledTextFieldCell customizes the look of the standard Cocoa text field.
 // The border and focus ring are modified, as is the font baseline.  Subclasses
 // can override |drawInteriorWithFrame:inView:| to provide custom drawing for
 // decorations, but they must make sure to call the superclass' implementation
 // with a modified frame after performing any custom drawing.
 
 @interface StyledTextFieldCell : NSTextFieldCell {
 }
 
-// Baseline adjust for the text in this cell.  Defaults to 0.  Subclasses should
-// override as needed.
-- (CGFloat)baselineAdjust;
+@end
 
-// Radius of the corners of the field.  Defaults to square corners (0.0).
-- (CGFloat)cornerRadius;
+// Methods intended to be overridden by subclasses, not part of the public API
+// and should not be called outside of subclasses.
+@interface StyledTextFieldCell (ProtectedMethods)
 
 // Return the portion of the cell to show the text cursor over.  The default
 // implementation returns the full |cellFrame|.  Subclasses should override this
 // method if they add any decorations.
 - (NSRect)textCursorFrameForFrame:(NSRect)cellFrame;
 
 // Return the portion of the cell to use for text display.  This corresponds to
 // the frame with our added decorations sliced off.  The default implementation
 // returns the full |cellFrame|, as by default there are no decorations.
 // Subclasses should override this method if they add any decorations.
 - (NSRect)textFrameForFrame:(NSRect)cellFrame;
 
+// Baseline adjust for the text in this cell.  Defaults to 0.  Subclasses should
+// override as needed.
+- (CGFloat)baselineAdjust;
+
+// Radius of the corners of the field.  Defaults to square corners (0.0).
+- (CGFloat)cornerRadius;
+
+// Returns YES if a light themed bezel should be drawn under the text field.
+// Default implementation returns NO.
+- (BOOL)shouldDrawBezel;
+
 @end
+
+#endif  // CHROME_BROWSER_COCOA_STYLED_TEXT_FIELD_CELL_H_