Move LayoutObject::nextOffset/previousOffset() to editing utility

third_party/WebKit/Source/core/layout/LayoutText.cpp

Index: third_party/WebKit/Source/core/layout/LayoutText.cpp
diff --git a/third_party/WebKit/Source/core/layout/LayoutText.cpp b/third_party/WebKit/Source/core/layout/LayoutText.cpp
index 3099e448e86b5b3c0ef131b5caadacacbff463b6..579918a3fa12f6b0488d529e499c00da932e5da0 100644
--- a/third_party/WebKit/Source/core/layout/LayoutText.cpp
+++ b/third_party/WebKit/Source/core/layout/LayoutText.cpp
@@ -1656,24 +1656,6 @@ unsigned LayoutText::resolvedTextLength() const
     return len;
 }
 
-int LayoutText::previousOffset(int current) const
-{
-    if (m_text.is8Bit())
-        return current - 1;
-
-    StringImpl* textImpl = m_text.impl();
-    TextBreakIterator* iterator = cursorMovementIterator(textImpl->characters16(), textImpl->length());
-    if (!iterator)
-        return current - 1;
-
-    long result = iterator->preceding(current);
-    if (result == TextBreakDone)
-        result = current - 1;
-
-
-    return result;
-}
-
 int LayoutText::previousOffsetForBackwardDeletion(int current) const
 {
     // Delete by one code point. Ideally we should delete grapheme where that
@@ -1685,23 +1667,6 @@ int LayoutText::previousOffsetForBackwardDeletion(int current) const
     return current;
 }
 
-int LayoutText::nextOffset(int current) const
-{
-    if (m_text.is8Bit())
-        return current + 1;
-
-    StringImpl* textImpl = m_text.impl();
-    TextBreakIterator* iterator = cursorMovementIterator(textImpl->characters16(), textImpl->length());
-    if (!iterator)
-        return current + 1;
-
-    long result = iterator->following(current);
-    if (result == TextBreakDone)
-        result = current + 1;
-
-    return result;
-}
-
 bool LayoutText::computeCanUseSimpleFontCodePath() const
 {
     if (m_text.is8Bit())