Disables turning on custom frame in chrome os.

BUG=none
TEST=none

Review URL: http://codereview.chromium.org/207055

git-svn-id: svn://svn.chromium.org/chrome/trunk/src@26933 0039d316-1c4b-4281-b951-d872f2087c98
diff --git a/chrome/browser/defaults.h b/chrome/browser/defaults.h
index bd7b4f0..e29dddd3 100644
--- a/chrome/browser/defaults.h
+++ b/chrome/browser/defaults.h
@@ -23,6 +23,9 @@
 // Size of the font used in the autocomplete popup.
 extern const int kAutocompletePopupFontSize;
 
+// Can the user toggle the system title bar?
+extern const bool kCanToggleSystemTitleBar;
+
 #endif
 
 // The default value for session startup.