Bug 782204 - Fixed osfileutils.cpp compilation on case sensitive OSes r=dteller

--HG--
extra : rebase_source : 57687cc61a8af200fe499b47bb201d43b0b169ea

toolkit/components/osfile/osfileutils.cpp

@@ -11,7 +11,7 @@
 namespace {
 
 #if defined(XP_WIN)
-#include <Windows.h>
+#include <windows.h>
 
 /**
  * Set the OS-specific error to inform the OS that