Move some reparenting and anonymous block merge functionality down to LayoutBlockFlow.

third_party/WebKit/Source/core/layout/LayoutBlock.h

Index: third_party/WebKit/Source/core/layout/LayoutBlock.h
diff --git a/third_party/WebKit/Source/core/layout/LayoutBlock.h b/third_party/WebKit/Source/core/layout/LayoutBlock.h
index 884f5a0c1d81eb7e02c13f26b3db6e5d139704d5..ee2c9e6e6239896948ab380eab2c0283635765bb 100644
--- a/third_party/WebKit/Source/core/layout/LayoutBlock.h
+++ b/third_party/WebKit/Source/core/layout/LayoutBlock.h
@@ -282,20 +282,6 @@ public:
     LayoutBlockFlow* nearestInnerBlockWithFirstLine();
 
 protected:
-    // Merge children of |siblingThatMayBeDeleted| into this object if possible, and delete
-    // |siblingThatMayBeDeleted|. Returns true if we were able to merge. In that case,
-    // |siblingThatMayBeDeleted| will be dead. We'll only be able to merge if both blocks are
-    // anonymous.
-    // TODO(mstensho): This belongs in LayoutBlockFlow, but needs to live here until we have been
-    // able to move all callers down to LayoutBlockFlow.
-    bool mergeSiblingContiguousAnonymousBlock(LayoutBlockFlow* siblingThatMayBeDeleted);
-
-    // Reparent subsequent or preceding adjacent floating or out-of-flow siblings into this object.
-    // TODO(mstensho): This belongs in LayoutBlockFlow, but needs to live here until we have been
-    // able to move all callers down to LayoutBlockFlow first.
-    void reparentSubsequentFloatingOrOutOfFlowSiblings();
-    void reparentPrecedingFloatingOrOutOfFlowSiblings();
-
     void willBeDestroyed() override;
 
     void dirtyForLayoutFromPercentageHeightDescendants(SubtreeLayoutScope&);