Replace LayoutObject::skipInvalidationWhenLaidOutChildren() with paintedOutputOfObjectHasNoEffect

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

Index: third_party/WebKit/Source/core/layout/LayoutView.cpp
diff --git a/third_party/WebKit/Source/core/layout/LayoutView.cpp b/third_party/WebKit/Source/core/layout/LayoutView.cpp
index a1f5a977f9e3d31fe10640850ec1b03bf95a1455..ae252caf1836b773b5c7803fa55a5b5300f2c070 100644
--- a/third_party/WebKit/Source/core/layout/LayoutView.cpp
+++ b/third_party/WebKit/Source/core/layout/LayoutView.cpp
@@ -571,13 +571,6 @@ void LayoutView::invalidatePaintForSelection()
             continue;
 
         o->setShouldInvalidateSelection();
-
-        // Blocks are responsible for painting line gaps and margin gaps. They must be examined as well.
-        for (LayoutBlock* block = o->containingBlock(); block && !block->isLayoutView(); block = block->containingBlock()) {
-            if (!processedBlocks.add(block).isNewEntry)
-                break;
-            block->setShouldInvalidateSelection();
-        }

[Xianzhu, 2016/08/03 19:56:37]

Blocks no longer paint selection gaps. This change is included in this CL
because this affects how we check if a LayoutBox has selection in
LayoutBox::canSkipUnforcedPaintInvalidation().

     }
 }