Remove codes related to scaling in GraphicsLayer tree.

Source/WebKit/chromium/src/PageOverlay.cpp

 /*
  * 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 48 matching lines @@
 
 PageOverlay::PageOverlay(WebViewImpl* viewImpl, WebPageOverlay* overlay)
     : m_viewImpl(viewImpl)
     , m_overlay(overlay)
     , m_zOrder(0)
 {
 }
 
 class OverlayGraphicsLayerClientImpl : public WebCore::GraphicsLayerClient {
 public:
-    static PassOwnPtr<OverlayGraphicsLayerClientImpl*> create(WebViewImpl* webViewImpl, WebPageOverlay* overlay)
+    static PassOwnPtr<OverlayGraphicsLayerClientImpl*> create(WebPageOverlay* overlay)
     {
-        return adoptPtr(new OverlayGraphicsLayerClientImpl(webViewImpl, overlay));
+        return adoptPtr(new OverlayGraphicsLayerClientImpl(overlay));
     }
 
     virtual ~OverlayGraphicsLayerClientImpl() { }
 
     virtual void notifyAnimationStarted(const GraphicsLayer*, double time) { }
 
     virtual void paintContents(const GraphicsLayer*, GraphicsContext& gc, GraphicsLayerPaintingPhase, const IntRect& inClip)
     {
         gc.save();
         m_overlay->paintPageOverlay(ToWebCanvas(&gc));
         gc.restore();
     }
 
-    virtual float deviceScaleFactor() const
-    {
-        return m_webViewImpl->deviceScaleFactor();
-    }
-
-    virtual float pageScaleFactor() const
-    {
-        return m_webViewImpl->pageScaleFactor();
-    }
-
 private:
-    OverlayGraphicsLayerClientImpl(WebViewImpl* webViewImpl, WebPageOverlay* overlay)
+    explicit OverlayGraphicsLayerClientImpl(WebPageOverlay* overlay)
         : m_overlay(overlay)
-        , m_webViewImpl(webViewImpl)
     {
     }
 
     WebPageOverlay* m_overlay;
-    WebViewImpl* m_webViewImpl;
 };
 
 void PageOverlay::clear()
 {
     invalidateWebFrame();
 
     if (m_layer) {
         m_layer->removeFromParent();
         m_layer = nullptr;
         m_layerClient = nullptr;
     }
 }
 
 void PageOverlay::update()
 {
     invalidateWebFrame();
 
     if (!m_layer) {
-        m_layerClient = OverlayGraphicsLayerClientImpl::create(m_viewImpl, m_overlay);
+        m_layerClient = OverlayGraphicsLayerClientImpl::create(m_overlay);
         m_layer = GraphicsLayer::create(m_viewImpl->graphicsLayerFactory(), m_layerClient.get());
         m_layer->setName("WebViewImpl page overlay content");
         m_layer->setDrawsContent(true);
     }
 
     FloatSize size(m_viewImpl->size());
     if (size != m_layer->size()) {
         // Triggers re-adding to root layer to ensure that we are on top of
         // scrollbars.
         m_layer->removeFromParent();
@@ skipping 26 matching lines @@
         // this is not on a critical codepath? In order to do so, we'd
         // have to take scrolling into account.
         const WebSize& size = m_viewImpl->size();
         WebRect damagedRect(0, 0, size.width, size.height);
         if (m_viewImpl->client())
             m_viewImpl->client()->didInvalidateRect(damagedRect);
     }
 }
 
 } // namespace WebKit