Move invalidateDisplayItemClients() override into LayoutBlockFlow and eat the static helper.

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

Index: third_party/WebKit/Source/core/layout/LayoutBlockFlow.cpp
diff --git a/third_party/WebKit/Source/core/layout/LayoutBlockFlow.cpp b/third_party/WebKit/Source/core/layout/LayoutBlockFlow.cpp
index 1f11e9809007648f8021300f03ebf495772820d2..e024ccc5af6948c48ab64160fce998dc246ae4ed 100644
--- a/third_party/WebKit/Source/core/layout/LayoutBlockFlow.cpp
+++ b/third_party/WebKit/Source/core/layout/LayoutBlockFlow.cpp
@@ -2362,6 +2362,29 @@ void LayoutBlockFlow::invalidatePaintForOverflow()
     m_paintInvalidationLogicalBottom = LayoutUnit();
 }
 
+void LayoutBlockFlow::invalidateDisplayItemClients(const LayoutBoxModelObject& paintInvalidationContainer, PaintInvalidationReason invalidationReason) const
+{
+    LayoutBlock::invalidateDisplayItemClients(paintInvalidationContainer, invalidationReason);
+
+    // If the block is a continuation or containing block of an inline continuation, invalidate the
+    // start object of the continuations if it has focus ring because change of continuation may change
+    // the shape of the focus ring.
+    if (!isAnonymous())
+        return;
+
+    LayoutObject* startOfContinuations = nullptr;
+    if (LayoutInline* inlineElementContinuation = this->inlineElementContinuation()) {
+        // This block is an anonymous block continuation.
+        startOfContinuations = inlineElementContinuation->node()->layoutObject();
+    } else if (LayoutObject* firstChild = this->firstChild()) {
+        // This block is the anonymous containing block of an inline element continuation.
+        if (firstChild->isElementContinuation())
+            startOfContinuations = firstChild->node()->layoutObject();
+    }
+    if (startOfContinuations && startOfContinuations->styleRef().outlineStyleIsAuto())
+        startOfContinuations->invalidateDisplayItemClient(*startOfContinuations);
+}
+
 void LayoutBlockFlow::paintFloats(const PaintInfo& paintInfo, const LayoutPoint& paintOffset) const
 {
     BlockFlowPainter(*this).paintFloats(paintInfo, paintOffset);