Revert "Update StyleValue.cssString() to use existing methods instead of rolling our…

third_party/WebKit/Source/core/css/cssom/LengthValue.cpp

Index: third_party/WebKit/Source/core/css/cssom/LengthValue.cpp
diff --git a/third_party/WebKit/Source/core/css/cssom/LengthValue.cpp b/third_party/WebKit/Source/core/css/cssom/LengthValue.cpp
index e184e2ca61ab60ecc82c2e085231d2c9a478cdd2..d437cf06ac2b01e6eaefffabeeda7536847b8d76 100644
--- a/third_party/WebKit/Source/core/css/cssom/LengthValue.cpp
+++ b/third_party/WebKit/Source/core/css/cssom/LengthValue.cpp
@@ -161,45 +161,6 @@ const String& LengthValue::lengthTypeToString(LengthValue::LengthUnit unit)
     }
 }
 
-CSSPrimitiveValue::UnitType LengthValue::lengthTypeToPrimitiveType(LengthValue::LengthUnit unit)
-{
-    switch (unit) {
-    case Px:
-        return CSSPrimitiveValue::UnitType::Pixels;
-    case Percent:
-        return CSSPrimitiveValue::UnitType::Percentage;
-    case Em:
-        return CSSPrimitiveValue::UnitType::Ems;
-    case Ex:
-        return CSSPrimitiveValue::UnitType::Exs;
-    case Ch:
-        return CSSPrimitiveValue::UnitType::Chs;
-    case Rem:
-        return CSSPrimitiveValue::UnitType::Rems;
-    case Vw:
-        return CSSPrimitiveValue::UnitType::ViewportWidth;
-    case Vh:
-        return CSSPrimitiveValue::UnitType::ViewportHeight;
-    case Vmin:
-        return CSSPrimitiveValue::UnitType::ViewportMin;
-    case Vmax:
-        return CSSPrimitiveValue::UnitType::ViewportMax;
-    case Cm:
-        return CSSPrimitiveValue::UnitType::Centimeters;
-    case Mm:
-        return CSSPrimitiveValue::UnitType::Millimeters;
-    case In:
-        return CSSPrimitiveValue::UnitType::Inches;
-    case Pc:
-        return CSSPrimitiveValue::UnitType::Picas;
-    case Pt:
-        return CSSPrimitiveValue::UnitType::Points;
-    default:
-        ASSERT_NOT_REACHED();
-        return CSSPrimitiveValue::UnitType::Pixels;
-    }
-}
-
 LengthValue* LengthValue::addInternal(const LengthValue*, ExceptionState&)
 {
     ASSERT_NOT_REACHED();