[LayoutNG] Set ContainsInlineWIthOutlineContinuation flag

This patch makes CL:1251142 tests pass. LayoutNG was not setting
the  InlineOutlineWithContinuation flag.

Bug: 835484
Change-Id: If42b64316e71bb3c23ef05284b2c220b6baf4700
Reviewed-on: https://chromium-review.googlesource.com/c/1354319
Commit-Queue: Aleks Totic <atotic@chromium.org>
Reviewed-by: Morten Stenshorne <mstensho@chromium.org>
Cr-Commit-Position: refs/heads/master@{#611954}

third_party/blink/renderer/core/layout/layout_object.h

@@ -1800,6 +1800,11 @@ class CORE_EXPORT LayoutObject : public ImageResourceObserver,
                : NGOutlineType::kDontIncludeBlockVisualOverflow;
   }
 
+  // Only public for LayoutNG.
+  void SetContainsInlineWithOutlineAndContinuation(bool b) {
+    bitfields_.SetContainsInlineWithOutlineAndContinuation(b);
+  }
+
   // Collects rectangles enclosing visual overflows of the DOM subtree under
   // this object.
   // The rects also cover continuations which may be not in the layout subtree
@@ -2371,10 +2376,6 @@ class CORE_EXPORT LayoutObject : public ImageResourceObserver,
   // LayoutFlowThread.
   void RemoveFromLayoutFlowThread();
 
-  void SetContainsInlineWithOutlineAndContinuation(bool b) {
-    bitfields_.SetContainsInlineWithOutlineAndContinuation(b);
-  }
-
   void SetPreviousOutlineMayBeAffectedByDescendants(bool b) {
     bitfields_.SetPreviousOutlineMayBeAffectedByDescendants(b);
   }

third_party/blink/renderer/core/layout/ng/ng_block_node.cc

@@ -10,6 +10,7 @@
 #include "third_party/blink/renderer/core/html/html_marquee_element.h"
 #include "third_party/blink/renderer/core/layout/layout_block_flow.h"
 #include "third_party/blink/renderer/core/layout/layout_fieldset.h"
+#include "third_party/blink/renderer/core/layout/layout_inline.h"
 #include "third_party/blink/renderer/core/layout/layout_multi_column_flow_thread.h"
 #include "third_party/blink/renderer/core/layout/layout_multi_column_set.h"
 #include "third_party/blink/renderer/core/layout/min_max_size.h"
@@ -753,6 +754,15 @@ void NGBlockNode::CopyFragmentDataToLayoutBoxForInlineChildren(
         layout_box.SetLocation(maybe_flipped_offset.ToLayoutPoint());
       }
 
+      // Legacy compatibility. This flag is used in paint layer for
+      // invalidation.
+      if (layout_object && layout_object->IsLayoutInline() &&
+          layout_object->StyleRef().HasOutline() &&
+          !layout_object->IsElementContinuation() &&
+          ToLayoutInline(layout_object)->Continuation()) {
+        box_->SetContainsInlineWithOutlineAndContinuation(true);
+      }
+
       // The Location() of inline LayoutObject is relative to the
       // LayoutBlockFlow. If |child| establishes a new block formatting context,
       // it also creates another inline formatting context. Do not copy to its