Delete MaskImageChanged, VideoChanged, and FullScreenChanged

Source/core/rendering/RenderBox.cpp

 /*
  * Copyright (C) 1999 Lars Knoll (knoll@kde.org)
  *           (C) 1999 Antti Koivisto (koivisto@kde.org)
  *           (C) 2005 Allan Sandfeld Jensen (kde@carewolf.com)
  *           (C) 2005, 2006 Samuel Weinig (sam.weinig@gmail.com)
  * Copyright (C) 2005, 2006, 2007, 2008, 2009, 2010 Apple Inc. All rights reserved.
  * Copyright (C) 2013 Adobe Systems Incorporated. All rights reserved.
  *
  * This library is free software; you can redistribute it and/or
  * modify it under the terms of the GNU Library General Public
@@ skipping 1466 matching lines @@
     if (shouldDrawBackgroundInSeparateBuffer)
         context->endLayer();
 }
 
 void RenderBox::paintFillLayer(const PaintInfo& paintInfo, const Color& c, const FillLayer* fillLayer, const LayoutRect& rect,
     BackgroundBleedAvoidance bleedAvoidance, CompositeOperator op, RenderObject* backgroundObject)
 {
     paintFillLayerExtended(paintInfo, c, fillLayer, rect, bleedAvoidance, 0, LayoutSize(), op, backgroundObject);
 }
 
-static bool layersUseImage(WrappedImagePtr image, const FillLayer* layers)
-{
-    for (const FillLayer* curLayer = layers; curLayer; curLayer = curLayer->next()) {
-        if (curLayer->image() && image == curLayer->image()->data())
-            return true;
-    }
-
-    return false;
-}
-
 void RenderBox::imageChanged(WrappedImagePtr image, const IntRect*)
 {
     if (!parent())
         return;
 
     AllowPaintInvalidationScope scoper(frameView());
 
     if ((style()->borderImage().image() && style()->borderImage().image()->data() == image) ||
         (style()->maskBoxImage().image() && style()->maskBoxImage().image()->data() == image)) {
         repaint();
         return;
     }
 
     ShapeValue* shapeOutsideValue = style()->shapeOutside();
     if (!frameView()->isInPerformLayout() && isFloating() && shapeOutsideValue && shapeOutsideValue->image() && shapeOutsideValue->image()->data() == image) {
         ShapeOutsideInfo::ensureInfo(*this).markShapeAsDirty();
         markShapeOutsideDependentsForLayout();
     }
 
     bool didFullRepaint = repaintLayerRectsForImage(image, style()->backgroundLayers(), true);
     if (!didFullRepaint)
         repaintLayerRectsForImage(image, style()->maskLayers(), false);
-
-    if (hasLayer() && layer()->hasCompositedMask() && layersUseImage(image, style()->maskLayers()))
-        layer()->contentChanged(MaskImageChanged);
 }
 
 bool RenderBox::repaintLayerRectsForImage(WrappedImagePtr image, const FillLayer* layers, bool drawingBackground)
 {
     LayoutRect rendererRect;
     RenderBox* layerRenderer = 0;
 
     for (const FillLayer* curLayer = layers; curLayer; curLayer = curLayer->next()) {
         if (curLayer->image() && image == curLayer->image()->data() && curLayer->image()->canRender(*this, style()->effectiveZoom())) {
             // Now that we know this image is being used, compute the renderer and the rect if we haven't already.
@@ skipping 3165 matching lines @@
         return 0;
 
     if (!layoutState && !flowThreadContainingBlock())
         return 0;
 
     RenderBlock* containerBlock = containingBlock();
     return containerBlock->offsetFromLogicalTopOfFirstPage() + logicalTop();
 }
 
 } // namespace WebCore