Convert animation and renderer code to know about BorderImageLength

Source/platform/LengthOrNumberBox.h

Index: Source/platform/LengthOrNumberBox.h
diff --git a/Source/platform/LengthOrNumberBox.h b/Source/platform/LengthOrNumberBox.h
index 6fec9d1b882d59743559567a14309b203ad06832..1612db789ac055aaaa3328c6b2dc6bd732ea81d0 100644
--- a/Source/platform/LengthOrNumberBox.h
+++ b/Source/platform/LengthOrNumberBox.h
@@ -20,7 +20,6 @@
 #ifndef LengthOrNumberBox_h
 #define LengthOrNumberBox_h
 
-#include "platform/LengthBox.h"
 #include "platform/LengthOrNumber.h"
 
 namespace WebCore {
@@ -47,11 +46,11 @@ public:
     {
     }
 
-    explicit LengthOrNumberBox(LengthBox lengthBox) :
-        m_left(lengthBox.m_left),
-        m_right(lengthBox.m_right),
-        m_top(lengthBox.m_top),
-        m_bottom(lengthBox.m_bottom)
+    LengthOrNumberBox(LengthOrNumber t, LengthOrNumber r, LengthOrNumber b, LengthOrNumber l)
+        : m_left(l)
+        , m_right(r)
+        , m_top(t)
+        , m_bottom(b)
     {
     }
 
@@ -80,12 +79,6 @@ public:
         return !(m_left.isZero() && m_right.isZero() && m_top.isZero() && m_bottom.isZero());
     }
 
-    LengthBox lengthBox() const
-    {
-        return LengthBox(m_top.unifiedLength(), m_right.unifiedLength(),
-            m_bottom.unifiedLength(), m_left.unifiedLength());
-    }
-
 private:
     LengthOrNumber m_left;
     LengthOrNumber m_right;