Add chooser permission UI code for Mac

chrome/browser/ui/website_settings/chooser_bubble_delegate.cc

Index: chrome/browser/ui/website_settings/chooser_bubble_delegate.cc
diff --git a/chrome/browser/ui/website_settings/chooser_bubble_delegate.cc b/chrome/browser/ui/website_settings/chooser_bubble_delegate.cc
index b0c3ea5690cc7826cf699cb4d51e782417ea4e4d..a3d1e99f4e0e9e5ee747e1c8ab2c7cc75099e750 100644
--- a/chrome/browser/ui/website_settings/chooser_bubble_delegate.cc
+++ b/chrome/browser/ui/website_settings/chooser_bubble_delegate.cc
@@ -4,10 +4,6 @@
 
 #include "chrome/browser/ui/website_settings/chooser_bubble_delegate.h"
 
-#if defined(OS_MACOSX)
-#include "components/bubble/bubble_ui.h"
-#endif
-
 ChooserBubbleDelegate::ChooserBubbleDelegate(Browser* browser)
     : browser_(browser) {}
 
@@ -16,11 +12,3 @@ ChooserBubbleDelegate::~ChooserBubbleDelegate() {}
 std::string ChooserBubbleDelegate::GetName() const {
   return "ChooserBubble";
 }
-
-// TODO(juncai): Add chooser bubble ui cocoa code for Mac.
-// Please refer to http://crbug.com/492204 for more information.
-#if defined(OS_MACOSX)
-scoped_ptr<BubbleUi> ChooserBubbleDelegate::BuildBubbleUi() {
-  return scoped_ptr<BubbleUi>();
-}
-#endif