Fix bug of animated table col/section/row background

third_party/WebKit/Source/core/layout/LayoutBox.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
@@ skipping 1667 matching lines @@
 
   if (!isDocumentElement() && !backgroundStolenForBeingBody()) {
     for (const FillLayer* layer = &styleRef().backgroundLayers(); layer;
          layer = layer->next()) {
       if (layer->image() && image == layer->image()->data()) {
         invalidateBackgroundObscurationStatus();
         bool maybeAnimated =
             layer->image()->cachedImage() &&
             layer->image()->cachedImage()->getImage() &&
             layer->image()->cachedImage()->getImage()->maybeAnimated();
-        if (maybeAnimated)
+        if (maybeAnimated) {
           setMayNeedPaintInvalidationAnimatedBackgroundImage();
-        else
+        } else {
           setShouldDoFullPaintInvalidation();
+          setBackgroundChangedSinceLastPaintInvalidation();
+        }
         break;
       }
     }
   }
 
   ShapeValue* shapeOutsideValue = style()->shapeOutside();
   if (!frameView()->isInPerformLayout() && isFloating() && shapeOutsideValue &&
       shapeOutsideValue->image() &&
       shapeOutsideValue->image()->data() == image) {
     ShapeOutsideInfo& info = ShapeOutsideInfo::ensureInfo(*this);
@@ skipping 46 matching lines @@
   LayoutView* layoutView = view();
   while (!layoutView->frame()->ownerLayoutItem().isNull())
     layoutView =
         LayoutAPIShim::layoutObjectFrom(layoutView->frame()->ownerLayoutItem())
             ->view();
   mapToVisualRectInAncestorSpace(layoutView, rect);
   return rect.intersects(LayoutRect(
       layoutView->frameView()->getScrollableArea()->visibleContentRect()));
 }
 
+void LayoutBox::ensureIsReadyForPaintInvalidation() {
+  LayoutBoxModelObject::ensureIsReadyForPaintInvalidation();
+
+  if (mayNeedPaintInvalidationAnimatedBackgroundImage() &&
+      !backgroundIsKnownToBeObscured())
+    setShouldDoFullPaintInvalidation(PaintInvalidationDelayedFull);
+
+  if (fullPaintInvalidationReason() != PaintInvalidationDelayedFull ||
+      !intersectsVisibleViewport())
+    return;
+
+  // Do regular full paint invalidation if the object with
+  // PaintInvalidationDelayedFull is onscreen.
+  if (intersectsVisibleViewport()) {
+    // Conservatively assume the delayed paint invalidation was caused by
+    // background image change.
+    setBackgroundChangedSinceLastPaintInvalidation();
+    setShouldDoFullPaintInvalidation(PaintInvalidationFull);
+  }
+}
+
 PaintInvalidationReason LayoutBox::invalidatePaintIfNeeded(
     const PaintInvalidationState& paintInvalidationState) {
   if (hasBoxDecorationBackground()
       // We also paint overflow controls in background phase.
       || (hasOverflowClip() && getScrollableArea()->hasOverflowControls())) {
     PaintLayer& layer = paintInvalidationState.paintingLayer();
     if (layer.layoutObject() != this)
       layer.setNeedsPaintPhaseDescendantBlockBackgrounds();
   }
 
@@ skipping 3876 matching lines @@
   LayoutRect rect = frameRect();
 
   LayoutBlock* block = containingBlock();
   if (block)
     block->adjustChildDebugRect(rect);
 
   return rect;
 }
 
 }  // namespace blink