[Layout API] Use layoutViewItem() in Document

third_party/WebKit/Source/core/layout/api/LayoutItem.h

Index: third_party/WebKit/Source/core/layout/api/LayoutItem.h
diff --git a/third_party/WebKit/Source/core/layout/api/LayoutItem.h b/third_party/WebKit/Source/core/layout/api/LayoutItem.h
index a3d0a0513b464417ccee2d6372608478759dc9f3..83d85a9948d092ea10682fbfc70f07dac7b81da1 100644
--- a/third_party/WebKit/Source/core/layout/api/LayoutItem.h
+++ b/third_party/WebKit/Source/core/layout/api/LayoutItem.h
@@ -178,11 +178,21 @@ public:
         return m_layoutObject->styleRef();
     }
 
+    ComputedStyle* mutableStyle() const
+    {
+        return m_layoutObject->mutableStyle();
+    }
+
     ComputedStyle& mutableStyleRef() const
     {
         return m_layoutObject->mutableStyleRef();
     }
 
+    void setStyle(PassRefPtr<ComputedStyle> style)
+    {
+        m_layoutObject->setStyle(style);
+    }
+
     LayoutSize offsetFromContainer(const LayoutItem& item) const
     {
         return m_layoutObject->offsetFromContainer(item.layoutObject());
@@ -243,6 +253,16 @@ public:
         m_layoutObject->setNeedsLayoutAndPrefWidthsRecalc(reason);
     }
 
+    bool wasNotifiedOfSubtreeChange() const
+    {
+        return m_layoutObject->wasNotifiedOfSubtreeChange();
+    }
+
+    void handleSubtreeModifications()
+    {
+        m_layoutObject->handleSubtreeModifications();
+    }
+
     bool needsOverflowRecalcAfterStyleChange() const
     {
         return m_layoutObject->needsOverflowRecalcAfterStyleChange();