Refactoring select popup on Mac....

chrome/browser/tab_contents/tab_contents_view_gtk.cc

Index: chrome/browser/tab_contents/tab_contents_view_gtk.cc
===================================================================
--- chrome/browser/tab_contents/tab_contents_view_gtk.cc	(revision 63740)
+++ chrome/browser/tab_contents/tab_contents_view_gtk.cc	(working copy)
@@ -311,6 +311,17 @@
   context_menu_->Popup(point);
 }
 
+void TabContentsViewGtk::ShowPopupMenu(const gfx::Rect& bounds,
+                                       int item_height,
+                                       double item_font_size,
+                                       int selected_item,
+                                       const std::vector<WebMenuItem>& items,
+                                       bool right_aligned) {
+  // We are not using external popup menus on Linux, they are rendered by
+  // WebKit.
+  NOTREACHED();
+}
+
 // Render view DnD -------------------------------------------------------------
 
 void TabContentsViewGtk::StartDragging(const WebDropData& drop_data,