Fix build issue : missing includes file

Fix to avoid this build error graphics/surfaces/x/X11Helper.cpp:272:26: error: 'UNUSED_PARAM' was not declared in this scope

diff --git a/Source/WebCore/platform/graphics/surfaces/x/X11Helper.h b/Source/WebCore/platform/graphics/surfaces/x/X11Helper.h
index d972c3a..db180c0 100644 (file)
--- a/Source/WebCore/platform/graphics/surfaces/x/X11Helper.h
+++ b/Source/WebCore/platform/graphics/surfaces/x/X11Helper.h
@@ -29,6 +29,8 @@
 #include "IntRect.h"
 #include "OwnPtrX11.h"
 
+#include <wtf/UnusedParam.h>
+
 #if USE(EGL)
 #include "EGLSurface.h"
 #endif