--- webkitgtk-2.26.2/Source/WebKit/WebProcess/WebPage/CoordinatedGraphics/LayerTreeHost.h
+++ webkitgtk-2.26.2-patched/Source/WebKit/WebProcess/WebPage/CoordinatedGraphics/LayerTreeHost.h
@@ -212,7 +212,6 @@
 inline void LayerTreeHost::cancelPendingLayerFlush() { }
 inline void LayerTreeHost::setRootCompositingLayer(WebCore::GraphicsLayer*) { }
 inline void LayerTreeHost::setViewOverlayRootLayer(WebCore::GraphicsLayer*) { }
-inline void LayerTreeHost::invalidate() { }
 inline void LayerTreeHost::scrollNonCompositedContents(const WebCore::IntRect&) { }
 inline void LayerTreeHost::forceRepaint() { }
 inline bool LayerTreeHost::forceRepaintAsync(CallbackID) { return false; }