[Line Layout API] Some harder SVGTextLayoutEngine changes

third_party/WebKit/Source/core/layout/api/LineLayoutItem.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 LineLayoutItem_h
 #define LineLayoutItem_h
 
 #include "core/layout/LayoutObject.h"
 #include "core/layout/LayoutObjectInlines.h"
 
@@ skipping 26 matching lines @@
     {
     }
 
     LineLayoutItem() : m_layoutObject(0) { }
 
     // TODO(pilgrim): Remove this. It's only here to make things compile before
     // switching all of core/layout/line to using the API.
     // https://crbug.com/499321
     operator LayoutObject*() const { return m_layoutObject; }
 
+    // TODO(dgrogan): Remove this when we replace the operator above with UnspecifiedBoolType.
+    bool isNull() const
+    {
+        return !m_layoutObject;
+    }
+
     bool isEqual(const LayoutObject* layoutObject) const
     {
         return m_layoutObject == layoutObject;
     }
 
     String debugName() const
     {
         return m_layoutObject->debugName();
     }
 
@@ skipping 205 matching lines @@
     bool isSVGInline() const
     {
         return m_layoutObject->isSVGInline();
     }
 
     bool isSVGInlineText() const
     {
         return m_layoutObject->isSVGInlineText();
     }
 
+    bool isSVGText() const
+    {
+        return m_layoutObject->isSVGText();
+    }
+
     bool isSVGTextPath() const
     {
         return m_layoutObject->isSVGTextPath();
     }
 
     bool isTableCell() const
     {
         return m_layoutObject->isTableCell();
     }
 
@@ skipping 124 matching lines @@
 
 private:
     LayoutObject* m_layoutObject;
 
     friend class LineLayoutAPIShim;
 };
 
 } // namespace blink
 
 #endif // LineLayoutItem_h