Use the runtime flag and remove '-webkit-' prefix for CSS3 text-indent.

Source/core/rendering/style/RenderStyle.cpp

Index: Source/core/rendering/style/RenderStyle.cpp
diff --git a/Source/core/rendering/style/RenderStyle.cpp b/Source/core/rendering/style/RenderStyle.cpp
index 220362ec18f89e3f2d933a01172049017ab6ec04..dbcffeef68a7b42db47c27bffb743ee5d22a3a66 100644
--- a/Source/core/rendering/style/RenderStyle.cpp
+++ b/Source/core/rendering/style/RenderStyle.cpp
@@ -431,9 +431,7 @@ StyleDifference RenderStyle::diff(const RenderStyle* other, unsigned& changedCon
     if (rareInheritedData.get() != other->rareInheritedData.get()) {
         if (rareInheritedData->highlight != other->rareInheritedData->highlight
             || rareInheritedData->indent != other->rareInheritedData->indent
-#if ENABLE(CSS3_TEXT)
             || rareInheritedData->m_textIndentLine != other->rareInheritedData->m_textIndentLine
-#endif
             || rareInheritedData->m_effectiveZoom != other->rareInheritedData->m_effectiveZoom
             || rareInheritedData->wordBreak != other->rareInheritedData->wordBreak
             || rareInheritedData->overflowWrap != other->rareInheritedData->overflowWrap