Index: third_party/WebKit/Source/core/paint/PaintInvalidator.cpp |
diff --git a/third_party/WebKit/Source/core/paint/PaintInvalidator.cpp b/third_party/WebKit/Source/core/paint/PaintInvalidator.cpp |
index 54bb8dc00a85b2f0d1823554bdbaef2251a1dafa..55d92fa3dbc270994d51b91680b1f68cbdb89e03 100644 |
--- a/third_party/WebKit/Source/core/paint/PaintInvalidator.cpp |
+++ b/third_party/WebKit/Source/core/paint/PaintInvalidator.cpp |
@@ -17,6 +17,7 @@ |
#include "core/paint/PaintLayer.h" |
#include "core/paint/PaintLayerScrollableArea.h" |
#include "core/paint/PaintPropertyTreeBuilder.h" |
+#include "wtf/Optional.h" |
namespace blink { |