$OpenBSD$

index f52a3df..5491519 100644
--- widget/cocoa/nsCocoaFeatures.mm.orig	Fri Feb 20 15:40:39 2015
+++ widget/cocoa/nsCocoaFeatures.mm	Fri Feb 20 15:40:39 2015
@@ -3,11 +3,12 @@
  * License, v. 2.0. If a copy of the MPL was not distributed with this
  * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
 
-#define MAC_OS_X_VERSION_MASK     0x0000FFFF
-#define MAC_OS_X_VERSION_10_6_HEX 0x00001060
-#define MAC_OS_X_VERSION_10_7_HEX 0x00001070
-#define MAC_OS_X_VERSION_10_8_HEX 0x00001080
-#define MAC_OS_X_VERSION_10_9_HEX 0x00001090
+#define MAC_OS_X_VERSION_MASK      0x0000FFFF
+#define MAC_OS_X_VERSION_10_6_HEX  0x00001060
+#define MAC_OS_X_VERSION_10_7_HEX  0x00001070
+#define MAC_OS_X_VERSION_10_8_HEX  0x00001080
+#define MAC_OS_X_VERSION_10_9_HEX  0x00001090
+#define MAC_OS_X_VERSION_10_10_HEX 0x000010A0
 
 // This API will not work for OS X 10.10, see Gestalt.h.
 
@@ -142,3 +143,9 @@ nsCocoaFeatures::OnMavericksOrLater()
 {
     return (OSXVersion() >= MAC_OS_X_VERSION_10_9_HEX);
 }
+
+/* static */ bool
+nsCocoaFeatures::OnYosemiteOrLater()
+{
+    return (OSXVersion() >= MAC_OS_X_VERSION_10_10_HEX);
+}