PageOverlays: Remove PageOverlayList

Source/web/PageOverlay.h

 /*
  * Copyright (C) 2011 Google Inc. All rights reserved.
  *
  * Redistribution and use in source and binary forms, with or without
  * modification, are permitted provided that the following conditions are
  * met:
  *
  * 1. Redistributions of source code must retain the above copyright
  * notice, this list of conditions and the following disclaimer.
  *
@@ skipping 11 matching lines @@
  * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
  * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
  * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
  * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
  * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
  */
 
 #ifndef PageOverlay_h
 #define PageOverlay_h
 
+#include "platform/graphics/GraphicsLayer.h"
 #include "platform/graphics/GraphicsLayerClient.h"
 #include "platform/graphics/paint/DisplayItemClient.h"
 #include "wtf/OwnPtr.h"
 #include "wtf/PassOwnPtr.h"
 #include "wtf/text/WTFString.h"
 
 namespace blink {
 
 class GraphicsContext;
-class GraphicsLayer;
 class WebPageOverlay;
 class WebViewImpl;
+class WebGraphicsContext;
 
 // Manages a layer that is overlaid on a WebView's content.
 // Clients can paint by implementing WebPageOverlay.
 //
 // With Slimming Paint, internal clients can extract a GraphicsContext to add
-// to the DisplayItemList owned by the GraphicsLayer.
+// to the DisplayItemList owned by the GraphicsLayer
 class PageOverlay : public GraphicsLayerClient {
 public:
-    static PassOwnPtr<PageOverlay> create(WebViewImpl*, WebPageOverlay*);
 
-    ~PageOverlay() { }
+    class Delegate {
+    public:
+        // Paints page overlay contents.
+        virtual void paintPageOverlay(WebGraphicsContext*, const WebSize& webViewSize) = 0;
+        virtual ~Delegate() { }
+    };
 
-    WebPageOverlay* overlay() const { return m_overlay; }
-    void setOverlay(WebPageOverlay* overlay) { m_overlay = overlay; }
+    static PassOwnPtr<PageOverlay> create(WebViewImpl*, PassOwnPtr<PageOverlay::Delegate>);
 
-    int zOrder() const { return m_zOrder; }
-    void setZOrder(int zOrder) { m_zOrder = zOrder; }
+    ~PageOverlay();
 
-    void clear();
     void update();
     void paintWebFrame(GraphicsContext&);
 
     GraphicsLayer* graphicsLayer() const { return m_layer.get(); }
     DisplayItemClient displayItemClient() const { return toDisplayItemClient(this); }
     String debugName() const { return "PageOverlay"; }
 
     // GraphicsLayerClient implementation
     void paintContents(const GraphicsLayer*, GraphicsContext&, GraphicsLayerPaintingPhase, const IntRect& inClip) override;
     String debugName(const GraphicsLayer*) override;
 
 private:
-    PageOverlay(WebViewImpl*, WebPageOverlay*);
+    PageOverlay(WebViewImpl*, PassOwnPtr<PageOverlay::Delegate>);
     void invalidateWebFrame();
 
     WebViewImpl* m_viewImpl;
-    WebPageOverlay* m_overlay;
+    OwnPtr<PageOverlay::Delegate> m_overlay;
     OwnPtr<GraphicsLayer> m_layer;
-    int m_zOrder;
 };
 
 } // namespace blink
 
 #endif // PageOverlay_h