PageOverlays: Remove PageOverlayList

Source/web/painting/ContinuousPainter.h

Index: Source/web/painting/ContinuousPainter.h
diff --git a/Source/web/painting/ContinuousPainter.h b/Source/web/painting/ContinuousPainter.h
index cde9579a75c300ba78d1745c7cbe78cc8c4efb79..8f8631b9e8076b59dc926a36d9fce85d960bf6be 100644
--- a/Source/web/painting/ContinuousPainter.h
+++ b/Source/web/painting/ContinuousPainter.h
@@ -31,7 +31,6 @@
 
 namespace blink {
 class GraphicsLayer;
-class PageOverlayList;
 
 // This class is responsible for calling setNeedsDisplay on all
 // GraphicsLayers in continuous painting mode.
@@ -40,7 +39,7 @@ public:
     // Calls setNeedsDisplay on the layer, then recursively calls
     // on mask layers, replica layers and all child layers.
     // Overlays are excluded, because they impact the page paint time metric.
-    static void setNeedsDisplayRecursive(GraphicsLayer*, PageOverlayList*);
+    static void setNeedsDisplayRecursive(GraphicsLayer*, GraphicsLayer* overlay);
 };
 
 } // namespace blink