Remove support for -webkit-line-clamp

Source/core/rendering/style/RenderStyle.h

Index: Source/core/rendering/style/RenderStyle.h
diff --git a/Source/core/rendering/style/RenderStyle.h b/Source/core/rendering/style/RenderStyle.h
index 98b00217d83f95f460a82a2c9c068acf95253ff2..d46812345c17f6136e01dc6697e3f44eb5b1cb99 100644
--- a/Source/core/rendering/style/RenderStyle.h
+++ b/Source/core/rendering/style/RenderStyle.h
@@ -42,7 +42,6 @@
 #include "core/rendering/style/BorderValue.h"
 #include "core/rendering/style/CounterDirectives.h"
 #include "core/rendering/style/DataRef.h"
-#include "core/rendering/style/LineClampValue.h"
 #include "core/rendering/style/NinePieceImage.h"
 #include "core/rendering/style/OutlineValue.h"
 #include "core/rendering/style/RenderStyleConstants.h"
@@ -888,7 +887,6 @@ public:
     bool isRunningAcceleratedAnimation() const { return rareNonInheritedData->m_runningAcceleratedAnimation; }
 
     LineBoxContain lineBoxContain() const { return rareInheritedData->m_lineBoxContain; }
-    const LineClampValue& lineClamp() const { return rareNonInheritedData->lineClamp; }
     Color tapHighlightColor() const { return rareInheritedData->tapHighlightColor; }
     ETextSecurity textSecurity() const { return static_cast<ETextSecurity>(rareInheritedData->textSecurity); }
 
@@ -1319,7 +1317,6 @@ public:
     void setIsRunningAcceleratedAnimation(bool b = true) { SET_VAR(rareNonInheritedData, m_runningAcceleratedAnimation, b); }
 
     void setLineBoxContain(LineBoxContain c) { SET_VAR(rareInheritedData, m_lineBoxContain, c); }
-    void setLineClamp(LineClampValue c) { SET_VAR(rareNonInheritedData, lineClamp, c); }
     void setTapHighlightColor(const Color& c) { SET_VAR(rareInheritedData, tapHighlightColor, c); }
     void setTextSecurity(ETextSecurity aTextSecurity) { SET_VAR(rareInheritedData, textSecurity, aTextSecurity); }
     void setTouchAction(TouchAction t) { SET_VAR(rareNonInheritedData, m_touchAction, t); }
@@ -1653,7 +1650,6 @@ public:
 
     // Keep these at the end.
     // FIXME: Why? Seems these should all be one big sorted list.
-    static LineClampValue initialLineClamp() { return LineClampValue(); }
     static ETextSecurity initialTextSecurity() { return TSNONE; }
     static Color initialTapHighlightColor();
     static const FilterOperations& initialFilter() { DEFINE_STATIC_LOCAL(FilterOperations, ops, ()); return ops; }