Returns an error if big endian. We probably don't need to worry about this 
since we don't use Skia gpu. 
Seems sparc specific. To be investigated. 

--- mozilla-esr31/gfx/skia/trunk/include/gpu/GrTypes.h.orig	2015-06-04 17:42:51.134028157 -0700
+++ mozilla-esr31/gfx/skia/trunk/include/gpu/GrTypes.h	2015-06-04 17:42:51.145109963 -0700
@@ -285,9 +285,9 @@
 static const int kGrPixelConfigCnt = kLast_GrPixelConfig + 1;
 
 // Aliases for pixel configs that match skia's byte order.
-#ifndef SK_CPU_LENDIAN
-    #error "Skia gpu currently assumes little endian"
-#endif
+// #ifndef SK_CPU_LENDIAN
+//    #error "Skia gpu currently assumes little endian"
+// #endif
 #if SK_PMCOLOR_BYTE_ORDER(B,G,R,A)
     static const GrPixelConfig kSkia8888_GrPixelConfig = kBGRA_8888_GrPixelConfig;
 #elif SK_PMCOLOR_BYTE_ORDER(R,G,B,A)