Add inlineOverflow and blockOverflow methods to NGFragment.

third_party/WebKit/Source/core/layout/ng/NGFragment.cpp

Index: third_party/WebKit/Source/core/layout/ng/NGFragment.cpp
diff --git a/third_party/WebKit/Source/core/layout/ng/NGFragment.cpp b/third_party/WebKit/Source/core/layout/ng/NGFragment.cpp
index 22d1d017e23539586331806e854c1d1ef0becf12..f2e0a97741634d445d19cc8c2075c13377ad4170 100644
--- a/third_party/WebKit/Source/core/layout/ng/NGFragment.cpp
+++ b/third_party/WebKit/Source/core/layout/ng/NGFragment.cpp
@@ -6,9 +6,12 @@
 
 namespace blink {
 
-NGFragment::NGFragment(LayoutUnit inlineSize, LayoutUnit blockSize)
+NGFragment::NGFragment(LayoutUnit inlineSize, LayoutUnit blockSize,
+    LayoutUnit inlineOverflow, LayoutUnit blockOverflow)
     : m_inlineSize(inlineSize)
     , m_blockSize(blockSize)
+    , m_inlineOverflow(inlineOverflow)
+    , m_blockOverflow(blockOverflow)
 {
 }
 
@@ -18,4 +21,9 @@ void NGFragment::setOffset(LayoutUnit inlineOffset, LayoutUnit blockOffset)
     m_blockOffset = blockOffset;
 }
 
+DEFINE_TRACE(NGFragment)
+{
+    visitor->trace(m_children);
+}
+
 } // namespace blink