Remove updatePaintingInfoForFragments() and per-fragment shouldPaintContent flag.

Source/core/rendering/RenderLayer.h

 /*
  * Copyright (C) 2003, 2009, 2012 Apple Inc. All rights reserved.
  * Copyright (C) 2013 Intel Corporation. All rights reserved.
  *
  * Portions are Copyright (C) 1998 Netscape Communications Corporation.
  *
  * Other contributors:
  *   Robert O'Callahan <roc+@cs.cmu.edu>
  *   David Baron <dbaron@fas.harvard.edu>
  *   Christian Biesinger <cbiesinger@web.de>
@@ skipping 498 matching lines @@
     void setShouldDoFullPaintInvalidationIncludingNonCompositingDescendants();
 
     bool hasSelfPaintingLayerDescendant() const
     {
         if (m_hasSelfPaintingLayerDescendantDirty)
             updateHasSelfPaintingLayerDescendant();
         ASSERT(!m_hasSelfPaintingLayerDescendantDirty);
         return m_hasSelfPaintingLayerDescendant;
     }
     LayoutRect paintingExtent(const RenderLayer* rootLayer, const LayoutRect& paintDirtyRect, const LayoutSize& subPixelAccumulation, PaintBehavior);
-    void collectFragments(LayerFragments&, const RenderLayer* rootLayer, const LayoutRect& dirtyRect,
-        ClipRectsCacheSlot, OverlayScrollbarSizeRelevancy inOverlayScrollbarSizeRelevancy = IgnoreOverlayScrollbarSize,
-        ShouldRespectOverflowClip = RespectOverflowClip, const LayoutPoint* offsetFromRoot = 0,
-        const LayoutSize& subPixelAccumulation = LayoutSize(), const LayoutRect* layerBoundingBox = 0);
+
+    enum DirtyRectIntersectionResult {
+        NotIntersectingDirtyRect,
+        IntersectingDirtyRect
+    };
+    // FIXME: insane number of parameters. Should we introduce a CollectFragmentsContext or something?
+    void collectFragments(LayerFragments&, DirtyRectIntersectionResult*, const RenderLayer* rootLayer, const LayoutRect& dirtyRect, ClipRectsCacheSlot, OverlayScrollbarSizeRelevancy inOverlayScrollbarSizeRelevancy = IgnoreOverlayScrollbarSize, ShouldRespectOverflowClip = RespectOverflowClip, const LayoutPoint* offsetFromRoot = 0, const LayoutSize& subPixelAccumulation = LayoutSize(), const LayoutRect* layerBoundingBox = 0);
 
     LayoutPoint renderBoxLocation() const { return renderer()->isBox() ? toRenderBox(renderer())->location() : LayoutPoint(); }
 
     enum TransparencyClipBoxBehavior {
         PaintingTransparencyClipBox,
         HitTestingTransparencyClipBox
     };
 
     enum TransparencyClipBoxMode {
         DescendantsOfTransparencyClipBox,
@@ skipping 175 matching lines @@
 
 } // namespace blink
 
 #ifndef NDEBUG
 // Outside the WebCore namespace for ease of invocation from gdb.
 void showLayerTree(const blink::RenderLayer*);
 void showLayerTree(const blink::RenderObject*);
 #endif
 
 #endif // RenderLayer_h