Traverse into child LayoutViews during invalidateTreeIfNeeded

Source/core/layout/LayoutObject.cpp

Index: Source/core/layout/LayoutObject.cpp
diff --git a/Source/core/layout/LayoutObject.cpp b/Source/core/layout/LayoutObject.cpp
index abd4d61201124cc82585b605cd753adc344d9950..bb1e69bd6957f6f4bbc5f41704a71e52dc6732b3 100644
--- a/Source/core/layout/LayoutObject.cpp
+++ b/Source/core/layout/LayoutObject.cpp
@@ -2342,6 +2342,11 @@ LayoutObject* LayoutObject::container(const LayoutBoxModelObject* paintInvalidat
     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();
@@ -3092,7 +3097,7 @@ static PaintInvalidationReason documentLifecycleBasedPaintInvalidationReason(con
 
 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();
 }