[Mac] Tweaks to the Wrench menu buttons.

chrome/browser/cocoa/wrench_menu_button_cell.h

Index: chrome/browser/cocoa/wrench_menu_button_cell.h
diff --git a/chrome/browser/cocoa/wrench_menu_button_cell.h b/chrome/browser/cocoa/wrench_menu_button_cell.h
new file mode 100644
index 0000000000000000000000000000000000000000..1ce73a83ba89607b55a18826fedda92c8bfb9819
--- /dev/null
+++ b/chrome/browser/cocoa/wrench_menu_button_cell.h
@@ -0,0 +1,19 @@
+// Copyright (c) 2010 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_WRENCH_MENU_BUTTON_CELL_H_
+#define CHROME_BROWSER_COCOA_WRENCH_MENU_BUTTON_CELL_H_
+
+#import <Cocoa/Cocoa.h>
+
+// The WrenchMenuButtonCell overrides drawing the background gradient to use
+// the same colors as NSSmallSquareBezelStyle but as a smooth gradient, rather
+// than two blocks of colors.  This also uses the blue menu highlight color for
+// the pressed state.
+@interface WrenchMenuButtonCell : NSButtonCell {
+}
+
+@end
+
+#endif  // CHROME_BROWSER_COCOA_WRENCH_MENU_BUTTON_CELL_H_