PageOverlays: Remove PageOverlayList

Source/web/PageWidgetDelegate.h

Index: Source/web/PageWidgetDelegate.h
diff --git a/Source/web/PageWidgetDelegate.h b/Source/web/PageWidgetDelegate.h
index b874cd90d6fbc4ca3ce8e5a54d4ef860f5b5b812..cf855cae1689aa94568ca94c21c2d64d0e23b1a6 100644
--- a/Source/web/PageWidgetDelegate.h
+++ b/Source/web/PageWidgetDelegate.h
@@ -39,7 +39,7 @@ namespace blink {
 
 class LocalFrame;
 class Page;
-class PageOverlayList;
+class PageOverlay;
 class WebGestureEvent;
 class WebInputEvent;
 class WebKeyboardEvent;
@@ -70,8 +70,8 @@ public:
     // Page's mainFrame(), if it is a LocalFrame.
     static void animate(Page&, double monotonicFrameBeginTime, LocalFrame& root);
     static void layout(Page&, LocalFrame& root);
-    static void paint(Page&, PageOverlayList*, WebCanvas*, const WebRect&, LocalFrame& root);
-    static void paintIgnoringCompositing(Page&, PageOverlayList*, WebCanvas*, const WebRect&, LocalFrame& root);
+    static void paint(Page&, PageOverlay*, WebCanvas*, const WebRect&, LocalFrame& root);
+    static void paintIgnoringCompositing(Page&, PageOverlay*, WebCanvas*, const WebRect&, LocalFrame& root);
     static bool handleInputEvent(PageWidgetEventHandler&, const WebInputEvent&, LocalFrame* root);
 
 private: