Move inlineElementContinuation() to LayoutBlockFlow.

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 1c5a2d9ed0e9e69867a937c85c60985efbb795b9..6abb8c9b86f975b0c840b9de557dbfc8828b50e0 100644
--- a/third_party/WebKit/Source/core/layout/LayoutBlockFlow.cpp
+++ b/third_party/WebKit/Source/core/layout/LayoutBlockFlow.cpp
@@ -2287,6 +2287,12 @@ void LayoutBlockFlow::setStaticInlinePositionForChild(LayoutBox& child, LayoutUn
     child.layer()->setStaticInlinePosition(inlinePosition);
 }
 
+LayoutInline* LayoutBlockFlow::inlineElementContinuation() const
+{
+    LayoutBoxModelObject* continuation = this->continuation();
+    return continuation && continuation->isInline() ? toLayoutInline(continuation) : nullptr;
+}
+
 void LayoutBlockFlow::addChild(LayoutObject* newChild, LayoutObject* beforeChild)
 {
     if (LayoutMultiColumnFlowThread* flowThread = multiColumnFlowThread()) {
@@ -3336,6 +3342,18 @@ bool LayoutBlockFlow::hitTestFloats(HitTestResult& result, const HitTestLocation
     return false;
 }
 
+LayoutSize LayoutBlockFlow::accumulateInFlowPositionOffsets() const
+{
+    if (!isAnonymousBlock() || !isInFlowPositioned())
+        return LayoutSize();
+    LayoutSize offset;
+    for (const LayoutObject* p = inlineElementContinuation(); p && p->isLayoutInline(); p = p->parent()) {
+        if (p->isInFlowPositioned())
+            offset += toLayoutInline(p)->offsetForInFlowPosition();
+    }
+    return offset;
+}
+
 LayoutUnit LayoutBlockFlow::logicalLeftFloatOffsetForLine(LayoutUnit logicalTop, LayoutUnit fixedOffset, LayoutUnit logicalHeight) const
 {
     if (m_floatingObjects && m_floatingObjects->hasLeftObjects())