Avoid paintInvalidationContainer parameter of invalidatePaintIfNeeded()

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

 /*
  * Copyright (C) 1999 Lars Knoll (knoll@kde.org)
  *           (C) 1999 Antti Koivisto (koivisto@kde.org)
  *           (C) 2000 Dirk Mueller (mueller@kde.org)
  *           (C) 2004 Allan Sandfeld Jensen (kde@carewolf.com)
  * Copyright (C) 2004, 2005, 2006, 2007, 2008, 2011 Apple Inc. All rights reserved.
  * Copyright (C) 2009 Google Inc. All rights reserved.
  * Copyright (C) 2009 Torch Mobile Inc. All rights reserved. (http://www.torchmobile.com/)
  *
  * This library is free software; you can redistribute it and/or
@@ skipping 1312 matching lines @@
     const LayoutBoxModelObject* paintInvalidationContainer = invalidatePaintRectangleInternal(rect);
     if (paintInvalidationContainer)
         invalidateDisplayItemClients(*paintInvalidationContainer, PaintInvalidationRectangle);
 }
 
 void LayoutObject::invalidatePaintRectangleNotInvalidatingDisplayItemClients(const LayoutRect& r) const
 {
     invalidatePaintRectangleInternal(r);
 }
 
-void LayoutObject::invalidateTreeIfNeeded(PaintInvalidationState& paintInvalidationState)
+void LayoutObject::invalidateTreeIfNeeded(const PaintInvalidationState& paintInvalidationState)
 {
     ASSERT(!needsLayout());
 
     // If we didn't need paint invalidation then our children don't need as well.
     // Skip walking down the tree as everything should be fine below us.
     if (!shouldCheckForPaintInvalidation(paintInvalidationState))
         return;
 
-    PaintInvalidationReason reason = invalidatePaintIfNeeded(paintInvalidationState, paintInvalidationState.paintInvalidationContainer());
-    clearPaintInvalidationState(paintInvalidationState);
+    PaintInvalidationReason reason = invalidatePaintIfNeeded(paintInvalidationState);
+    clearPaintInvalidationFlags(paintInvalidationState);
 
     if (reason == PaintInvalidationDelayedFull)
         paintInvalidationState.pushDelayedPaintInvalidationTarget(*this);
 
     invalidatePaintOfSubtreesIfNeeded(paintInvalidationState);
 }
 
-void LayoutObject::invalidatePaintOfSubtreesIfNeeded(PaintInvalidationState& childPaintInvalidationState)
+void LayoutObject::invalidatePaintOfSubtreesIfNeeded(const PaintInvalidationState& childPaintInvalidationState)
 {
     for (LayoutObject* child = slowFirstChild(); child; child = child->nextSibling()) {
         if (!child->isOutOfFlowPositioned())
             child->invalidateTreeIfNeeded(childPaintInvalidationState);
     }
 }
 
 static PassOwnPtr<TracedValue> jsonObjectForOldAndNewRects(const LayoutRect& oldRect, const LayoutPoint& oldLocation, const LayoutRect& newRect, const LayoutPoint& newLocation)
 {
     OwnPtr<TracedValue> value = TracedValue::create();
@@ skipping 54 matching lines @@
 
     if (shouldInvalidateSelection())
         invalidateDisplayItemClientsWithPaintInvalidationState(paintInvalidationContainer, paintInvalidationState, PaintInvalidationSelection);
 
     if (fullInvalidation)
         return;
 
     fullyInvalidatePaint(paintInvalidationContainer, PaintInvalidationSelection, oldSelectionRect, newSelectionRect);
 }
 
-PaintInvalidationReason LayoutObject::invalidatePaintIfNeeded(PaintInvalidationState& paintInvalidationState, const LayoutBoxModelObject& paintInvalidationContainer)
+PaintInvalidationReason LayoutObject::invalidatePaintIfNeeded(const PaintInvalidationState& paintInvalidationState)
 {
     if (styleRef().hasOutline()) {
         PaintLayer& layer = paintInvalidationState.enclosingSelfPaintingLayer(*this);
         if (layer.layoutObject() != this)
             layer.setNeedsPaintPhaseDescendantOutlines();
     }
 
     LayoutView* v = view();
     if (v->document().printing())
         return PaintInvalidationNone; // Don't invalidate paints if we're printing.
 
+    const LayoutBoxModelObject& paintInvalidationContainer = paintInvalidationState.paintInvalidationContainer();
+    // TODO(wangxianzhu): Enable this assert after we fix all paintInvalidationContainer mismatch issues. crbug.com/360286
+    // ASSERT(paintInvalidationContainer == containerForPaintInvalidation());
+
     const LayoutRect oldBounds = previousPaintInvalidationRect();
     const LayoutPoint oldLocation = RuntimeEnabledFeatures::slimmingPaintInvalidationEnabled() ? LayoutPoint() : previousPositionFromPaintInvalidationBacking();
     LayoutRect newBounds = boundsRectForPaintInvalidation(paintInvalidationContainer, &paintInvalidationState);
     LayoutPoint newLocation = RuntimeEnabledFeatures::slimmingPaintInvalidationEnabled() ? LayoutPoint() : PaintLayer::positionFromPaintInvalidationBacking(this, &paintInvalidationContainer, &paintInvalidationState);
 
     // Composited scrolling should not be included in the bounds and position tracking, because the graphics layer backing the scroller
     // does not move on scroll.
     if (paintInvalidationContainer.usesCompositedScrolling() && &paintInvalidationContainer != this) {
         LayoutSize inverseOffset(toLayoutBox(&paintInvalidationContainer)->scrolledContentOffset());
         newLocation.move(inverseOffset);
@@ skipping 2028 matching lines @@
 
 void LayoutObject::setMayNeedPaintInvalidation()
 {
     if (mayNeedPaintInvalidation())
         return;
     m_bitfields.setMayNeedPaintInvalidation(true);
     markContainerChainForPaintInvalidation();
     frameView()->scheduleVisualUpdateForPaintInvalidationIfNeeded();
 }
 
-void LayoutObject::clearPaintInvalidationState(const PaintInvalidationState& paintInvalidationState)
+void LayoutObject::clearPaintInvalidationFlags(const PaintInvalidationState& paintInvalidationState)
 {
     // paintInvalidationStateIsDirty should be kept in sync with the
     // booleans that are cleared below.
     ASSERT(paintInvalidationState.forcedSubtreeInvalidationWithinContainer() || paintInvalidationState.forcedSubtreeInvalidationRectUpdateWithinContainer() || paintInvalidationStateIsDirty());
     clearShouldDoFullPaintInvalidation();
     m_bitfields.setChildShouldCheckForPaintInvalidation(false);
     m_bitfields.setNeededLayoutBecauseOfChildren(false);
     m_bitfields.setShouldInvalidateOverflowForPaint(false);
     m_bitfields.setMayNeedPaintInvalidation(false);
     m_bitfields.setShouldInvalidateSelection(false);
@@ skipping 229 matching lines @@
         const blink::LayoutObject* root = object1;
         while (root->parent())
             root = root->parent();
         root->showLayoutTreeAndMark(object1, "*", object2, "-", 0);
     } else {
         fprintf(stderr, "Cannot showLayoutTree. Root is (nil)\n");
     }
 }
 
 #endif