Fix bug of animated table col/section/row background

third_party/WebKit/Source/core/layout/LayoutTableBoxComponent.cpp

 // Copyright 2016 The Chromium Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 #include "core/layout/LayoutTableBoxComponent.h"
 
 #include "core/layout/LayoutTable.h"
 #include "core/style/ComputedStyle.h"
 
 namespace blink {
 
-void LayoutTableBoxComponent::styleDidChange(StyleDifference diff,
-                                             const ComputedStyle* oldStyle) {
-  LayoutBox::styleDidChange(diff, oldStyle);
-
-  if (parent() && oldStyle) {
-    if (resolveColor(*oldStyle, CSSPropertyBackgroundColor) !=
-            resolveColor(CSSPropertyBackgroundColor) ||
-        oldStyle->backgroundLayers() != styleRef().backgroundLayers())
-      m_backgroundChangedSinceLastPaintInvalidation = true;
-  }
-}
-
-void LayoutTableBoxComponent::imageChanged(WrappedImagePtr, const IntRect*) {
-  setShouldDoFullPaintInvalidation();
-  m_backgroundChangedSinceLastPaintInvalidation = true;
-}
-
 bool LayoutTableBoxComponent::doCellsHaveDirtyWidth(
     const LayoutObject& tablePart,
     const LayoutTable& table,
     const StyleDifference& diff,
     const ComputedStyle& oldStyle) {
   // ComputedStyle::diffNeedsFullLayoutAndPaintInvalidation sets needsFullLayout
   // when border sizes change: checking diff.needsFullLayout() is an
   // optimization, not required for correctness.
   // TODO(dgrogan): Remove tablePart.needsLayout()? Perhaps it was an old
   // optimization but now it seems that diff.needsFullLayout() implies
   // tablePart.needsLayout().
   return diff.needsFullLayout() && tablePart.needsLayout() &&
          table.collapseBorders() &&
          !oldStyle.border().sizeEquals(tablePart.style()->border());
 }
 
 }  // namespace blink