Disable the new window context menu option in the bookmarks extension for Windows 8 metro mode.

chrome/browser/bookmarks/bookmark_manager_extension_api.h

Index: chrome/browser/bookmarks/bookmark_manager_extension_api.h
===================================================================
--- chrome/browser/bookmarks/bookmark_manager_extension_api.h	(revision 140583)
+++ chrome/browser/bookmarks/bookmark_manager_extension_api.h	(working copy)
@@ -182,4 +182,17 @@
   virtual bool RunImpl() OVERRIDE;
 };
 
+class CanOpenNewWindowsBookmarkFunction : public BookmarksFunction {
+ public:
+  DECLARE_EXTENSION_FUNCTION_NAME(
+      "experimental.bookmarkManager.canOpenNewWindows");
+
+ protected:
+  virtual ~CanOpenNewWindowsBookmarkFunction() {}
+
+  // ExtensionFunction:
+  virtual bool RunImpl() OVERRIDE;
+};
+
+
 #endif  // CHROME_BROWSER_BOOKMARKS_BOOKMARK_MANAGER_EXTENSION_API_H_