cocoa/infobars: Split infobar_controller.* into smaller parts.

chrome/browser/ui/cocoa/infobars/alternate_nav_infobar_controller.h

Index: chrome/browser/ui/cocoa/infobars/alternate_nav_infobar_controller.h
diff --git a/chrome/browser/ui/cocoa/infobars/alternate_nav_infobar_controller.h b/chrome/browser/ui/cocoa/infobars/alternate_nav_infobar_controller.h
new file mode 100644
index 0000000000000000000000000000000000000000..4b9082ac4eec9c766c136409afcf51f677ae7a00
--- /dev/null
+++ b/chrome/browser/ui/cocoa/infobars/alternate_nav_infobar_controller.h
@@ -0,0 +1,15 @@
+// Copyright 2012 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_UI_COCOA_INFOBARS_ALTERNATE_NAV_INFOBAR_CONTROLLER_H_
+#define CHROME_BROWSER_UI_COCOA_INFOBARS_ALTERNATE_NAV_INFOBAR_CONTROLLER_H_
+
+#import "chrome/browser/ui/cocoa/infobars/infobar_controller.h"
+
+@interface AlternateNavInfoBarController : InfoBarController
+// Called when there is a click on the link in the infobar.
+- (void)linkClicked;
+@end
+
+#endif  // CHROME_BROWSER_UI_COCOA_INFOBARS_ALTERNATE_NAV_INFOBAR_CONTROLLER_H_