add kNONE_LCDOrder for screens with no recognizable rgb order



git-svn-id: http://skia.googlecode.com/svn/trunk@518 2bbb7eff-a529-9590-31e7-b0007b416f81
diff --git a/include/core/SkFontHost.h b/include/core/SkFontHost.h
index cb56772..d706e4e 100644
--- a/include/core/SkFontHost.h
+++ b/include/core/SkFontHost.h
@@ -254,12 +254,16 @@
 
         Note, if you change this after startup, you'll need to flush the glyph
         cache because it'll have the wrong type of masks cached.
-    */
+     
+        kNONE_LCDOrder means that the subpixel elements are not spatially
+        separated in any usable fashion.
+     */
     enum LCDOrder {
         kRGB_LCDOrder = 0,    //!< this is the default
         kBGR_LCDOrder = 1,
+        kNONE_LCDOrder = 2,
     };
-
+    
     static void SetSubpixelOrder(LCDOrder order);
     static LCDOrder GetSubpixelOrder();
 };