[Line Layout API] Convert most of InlineBoxPainter to new API

Source/core/layout/api/LineLayoutBoxModel.h

 // Copyright 2015 The Chromium Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 #ifndef LineLayoutBoxModel_h
 #define LineLayoutBoxModel_h
 
 #include "core/layout/LayoutBoxModelObject.h"
 #include "core/layout/api/LineLayoutItem.h"
 #include "platform/LayoutUnit.h"
@@ skipping 115 matching lines @@
     bool hasInlineDirectionBordersOrPadding() const
     {
         return toBoxModel()->hasInlineDirectionBordersOrPadding();
     }
 
     LayoutUnit borderAndPaddingLogicalHeight() const
     {
         return toBoxModel()->borderAndPaddingLogicalHeight();
     }
 
+    bool boxShadowShouldBeAppliedToBackground(BackgroundBleedAvoidance bleedAvoidance, InlineFlowBox* inlineFlowBox = nullptr) const
+    {
+        return toBoxModel()->boxShadowShouldBeAppliedToBackground(bleedAvoidance, inlineFlowBox);
+    }
+
 private:
     LayoutBoxModelObject* toBoxModel() { return toLayoutBoxModelObject(layoutObject()); }
     const LayoutBoxModelObject* toBoxModel() const { return toLayoutBoxModelObject(layoutObject()); }
 };
 
+inline LineLayoutBoxModel LineLayoutItem::enclosingBoxModelObject() const
+{
+    return LineLayoutBoxModel(layoutObject()->enclosingBoxModelObject());
+}
+
 } // namespace blink
 
 #endif // LineLayoutBoxModel_h