Restrict new tab button clicks to inside the image bounds, not anywhere in th...

chrome/browser/cocoa/new_tab_button.h

+// 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_NEW_TAB_BUTTON
+#define CHROME_BROWSER_COCOA_NEW_TAB_BUTTON
+
+#import <Cocoa/Cocoa.h>
+
+#include "base/scoped_nsobject.h"
+
+// Overrides hit-test behavior to only accept clicks inside the image of the
+// button, not just inside the bounding box. This could be abstracted to general
+// use, but no other buttons are so irregularly shaped with respect to their
+// bounding box.
+
+@interface NewTabButton : NSButton {
+ @private
+  scoped_nsobject<NSBezierPath> imagePath_;
+}
+@end
+
+#endif  // CHROME_BROWSER_COCOA_NEW_TAB_BUTTON