[Mac] Create HyperlinkButtonCell and make the "Get themes" button an instance

* Creates a HyperlinkButtonCell that can be used in conjuction with a NSButton
  to display the control as a hyperlink (blue underliend text), rather than
  a normal Cocoa control.
* Switch the "Get themes..." button in Preferences to be one.

BUG=17989,21414
TEST=Preferences-->Personal Stuff, "Get themes..." is a hyperlink.

Review URL: http://codereview.chromium.org/248019

git-svn-id: svn://svn.chromium.org/chrome/trunk/src@27479 0039d316-1c4b-4281-b951-d872f2087c98

1 files changed, 21 insertions, 0 deletions

diff --git a/chrome/browser/cocoa/hyperlink_button_cell.h b/chrome/browser/cocoa/hyperlink_button_cell.h
new file mode 100644
index 0000000..67b5c20
--- /dev/null
+++ b/chrome/browser/cocoa/hyperlink_button_cell.h
@@ -0,0 +1,21 @@
+// 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.
+
+#import <Cocoa/Cocoa.h>
+#include "base/scoped_nsobject.h"
+
+// A HyperlinkButtonCell is used to create an NSButton that looks and acts
+// like a hyperlink. The default styling is to look like blue, underlined text
+// and to have the pointingHand cursor on mouse over.
+//
+// To use in Interface Builder:
+//  1. Drag out an NSButton.
+//  2. Double click on the button so you have the cell component selected.
+//  3. In the Identity panel of the inspector, set the custom class to this.
+@interface HyperlinkButtonCell : NSButtonCell {
+  scoped_nsobject<NSColor> textColor_;
+}
+@property (retain) NSColor* textColor;
+
+@end