Traverse into child LayoutViews during invalidateTreeIfNeeded

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 2324 matching lines @@
                     break;
                 }
             }
         }
         return multicolContainer;
     }
 
     return o;
 }
 
+LayoutObject* LayoutObject::containerAcrossFrameBoundary() const

[chrishtr, 2015/06/29 23:32:22]

containerCrossingFrameBoundaries to match
enclosingLayerForPaintInvalidationCrossingFrameBoundaries.

[Xianzhu, 2015/06/30 00:02:13]

Done.

+{
+    return isLayoutView() ? frame()->ownerLayoutObject() : container();
+}
+
 bool LayoutObject::isSelectionBorder() const
 {
     SelectionState st = selectionState();
     return st == SelectionStart || st == SelectionEnd || st == SelectionBoth;
 }
 
 inline void LayoutObject::clearLayoutRootIfNeeded() const
 {
     if (FrameView* view = frameView()) {
         if (!documentBeingDestroyed())
@@ skipping 730 matching lines @@
         return PaintInvalidationForcedByLayout;
     case DocumentLifecycle::InCompositingUpdate:
         return PaintInvalidationCompositingUpdate;
     default:
         return PaintInvalidationFull;
     }
 }
 
 inline void LayoutObject::markContainerChainForPaintInvalidation()
 {
-    for (LayoutObject* container = this->container(); container && !container->shouldCheckForPaintInvalidationRegardlessOfPaintInvalidationState(); container = container->container())
+    for (LayoutObject* container = this->containerAcrossFrameBoundary(); container && !container->shouldCheckForPaintInvalidationRegardlessOfPaintInvalidationState(); container = container->containerAcrossFrameBoundary())
         container->setSelfMayNeedPaintInvalidation();
 }
 
 void LayoutObject::setLayoutDidGetCalledSinceLastFrame()
 {
     m_bitfields.setLayoutDidGetCalledSinceLastFrame(true);
 
     // Make sure our parent is marked as needing invalidation.
     // This would be unneeded if we allowed sub-tree invalidation (akin to sub-tree layouts).
     markContainerChainForPaintInvalidation();
@@ skipping 148 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