Second try at enabling hidden visibility for NS_IMETHOD on ELF platforms (bug 227537). r+sr=dbaron for the changes.

widget/src/xpwidgets/nsPrintOptionsImpl.h

@@ -32,7 +32,7 @@
 //class nsIPrintSettings;
 
 #undef  IMETHOD_VISIBILITY
-#define IMETHOD_VISIBILITY default
+#define IMETHOD_VISIBILITY NS_VISIBILITY_DEFAULT
 
 //*****************************************************************************
 //***    nsPrintOptions
@@ -80,6 +80,6 @@ protected:
 };
 
 #undef  IMETHOD_VISIBILITY
-#define IMETHOD_VISIBILITY hidden
+#define IMETHOD_VISIBILITY NS_VISIBILITY_HIDDEN
 
 #endif /* nsPrintOptions_h__ */

widget/src/xpwidgets/nsPrintSession.h

@@ -49,7 +49,7 @@
 //*****************************************************************************
 
 #undef  IMETHOD_VISIBILITY
-#define IMETHOD_VISIBILITY default
+#define IMETHOD_VISIBILITY NS_VISIBILITY_DEFAULT
 
 class NS_GFX nsPrintSession : public nsIPrintSession,
                               public nsSupportsWeakReference
@@ -65,6 +65,6 @@ public:
 };
 
 #undef  IMETHOD_VISIBILITY
-#define IMETHOD_VISIBILITY hidden
+#define IMETHOD_VISIBILITY NS_VISIBILITY_HIDDEN
 
 #endif // nsPrintSession_h__

widget/src/xpwidgets/nsPrintSettingsImpl.h

@@ -35,7 +35,7 @@
 //*****************************************************************************
 
 #undef  IMETHOD_VISIBILITY
-#define IMETHOD_VISIBILITY default
+#define IMETHOD_VISIBILITY NS_VISIBILITY_DEFAULT
 
 class NS_GFX nsPrintSettings : public nsIPrintSettings
 {
@@ -116,6 +116,6 @@ protected:
 };
 
 #undef  IMETHOD_VISIBILITY
-#define IMETHOD_VISIBILITY hidden
+#define IMETHOD_VISIBILITY NS_VISIBILITY_HIDDEN
 
 #endif /* nsPrintSettings_h__ */