Remove background obscuration checks.

sky/engine/core/rendering/RenderImage.cpp

 /*
  * Copyright (C) 1999 Lars Knoll (knoll@kde.org)
  *           (C) 1999 Antti Koivisto (koivisto@kde.org)
  *           (C) 2000 Dirk Mueller (mueller@kde.org)
  *           (C) 2006 Allan Sandfeld Jensen (kde@carewolf.com)
  *           (C) 2006 Samuel Weinig (sam.weinig@gmail.com)
  * Copyright (C) 2003, 2004, 2005, 2006, 2008, 2009, 2010, 2011 Apple Inc. All rights reserved.
  * Copyright (C) 2010 Google Inc. All rights reserved.
  * Copyright (C) Research In Motion Limited 2011-2012. All rights reserved.
  *
@@ skipping 144 matching lines @@
 
 void RenderImage::updateInnerContentRect()
 {
     // Propagate container size to the image resource.
     LayoutRect containerRect = replacedContentRect();
     IntSize containerSize(containerRect.width(), containerRect.height());
     if (!containerSize.isEmpty())
         m_imageResource->setContainerSizeForRenderer(containerSize);
 }
 
-void RenderImage::notifyFinished(Resource* newImage)
-{
-    if (!m_imageResource)
-        return;
-
-    if (documentBeingDestroyed())
-        return;
-
-    invalidateBackgroundObscurationStatus();
-}
-
 void RenderImage::paintReplaced(PaintInfo& paintInfo, const LayoutPoint& paintOffset)
 {
     GraphicsContext* context = paintInfo.context;
 
     if (m_imageResource->hasImage() && contentWidth() > 0 && contentHeight() > 0) {
         LayoutRect contentRect = contentBoxRect();
         contentRect.moveBy(paintOffset);
         LayoutRect paintRect = replacedContentRect();
         paintRect.moveBy(paintOffset);
         bool clip = !contentRect.contains(paintRect);
@@ skipping 34 matching lines @@
     Image* image = img.get();
     InterpolationQuality interpolationQuality = chooseInterpolationQuality(context, image, image, alignedRect.size());
 
     TRACE_EVENT1(TRACE_DISABLED_BY_DEFAULT("devtools.timeline"), "PaintImage", "data", InspectorPaintImageEvent::data(*this));
     InterpolationQuality previousInterpolationQuality = context->imageInterpolationQuality();
     context->setImageInterpolationQuality(interpolationQuality);
     context->drawImage(image, alignedRect, CompositeSourceOver, shouldRespectImageOrientation());
     context->setImageInterpolationQuality(previousInterpolationQuality);
 }
 
-bool RenderImage::boxShadowShouldBeAppliedToBackground(BackgroundBleedAvoidance bleedAvoidance, InlineFlowBox*) const
-{
-    if (!RenderBoxModelObject::boxShadowShouldBeAppliedToBackground(bleedAvoidance))
-        return false;
-
-    return !const_cast<RenderImage*>(this)->boxDecorationBackgroundIsKnownToBeObscured();
-}
-
-bool RenderImage::foregroundIsKnownToBeOpaqueInRect(const LayoutRect& localRect, unsigned) const
-{
-    if (!m_imageResource->hasImage() || m_imageResource->errorOccurred())
-        return false;
-    if (m_imageResource->cachedImage() && !m_imageResource->cachedImage()->isLoaded())
-        return false;
-    if (!contentBoxRect().contains(localRect))
-        return false;
-    EFillBox backgroundClip = style()->backgroundClip();
-    // Background paints under borders.
-    if (backgroundClip == BorderFillBox && style()->hasBorder() && !borderObscuresBackground())
-        return false;
-    // Background shows in padding area.
-    if ((backgroundClip == BorderFillBox || backgroundClip == PaddingFillBox) && style()->hasPadding())
-        return false;
-    // Object-position may leave parts of the content box empty, regardless of the value of object-fit.
-    if (style()->objectPosition() != RenderStyle::initialObjectPosition())
-        return false;
-    // Object-fit may leave parts of the content box empty.
-    ObjectFit objectFit = style()->objectFit();
-    if (objectFit != ObjectFitFill && objectFit != ObjectFitCover)
-        return false;
-    // Check for image with alpha.
-    return m_imageResource->cachedImage() && m_imageResource->cachedImage()->currentFrameKnownToBeOpaque(this);
-}
-
-bool RenderImage::computeBackgroundIsKnownToBeObscured()
-{
-    if (!hasBackground())
-        return false;
-
-    LayoutRect paintedExtent;
-    if (!getBackgroundPaintedExtent(paintedExtent))
-        return false;
-    return foregroundIsKnownToBeOpaqueInRect(paintedExtent, 0);
-}
-
 LayoutUnit RenderImage::minimumReplacedHeight() const
 {
     return m_imageResource->errorOccurred() ? intrinsicSize().height() : LayoutUnit();
 }
 
 bool RenderImage::nodeAtPoint(const HitTestRequest& request, HitTestResult& result, const HitTestLocation& locationInContainer, const LayoutPoint& accumulatedOffset, HitTestAction hitTestAction)
 {
     HitTestResult tempResult(result.hitTestLocation());
     bool inside = RenderReplaced::nodeAtPoint(request, tempResult, locationInContainer, accumulatedOffset, hitTestAction);
 
@@ skipping 33 matching lines @@
         return;
     }
 }
 
 bool RenderImage::needsPreferredWidthsRecalculation() const
 {
     return RenderReplaced::needsPreferredWidthsRecalculation();
 }
 
 } // namespace blink