Remove CanvasRenderingContext from the web exposed objects

Source/core/html/canvas/CanvasRenderingContext2D.h

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 #ifndef CanvasRenderingContext2D_h
 #define CanvasRenderingContext2D_h
 
+#include "bindings/v8/ScriptWrappable.h"
 #include "core/css/CSSFontSelectorClient.h"
 #include "core/html/canvas/Canvas2DContextAttributes.h"
 #include "core/html/canvas/CanvasPathMethods.h"
 #include "core/html/canvas/CanvasRenderingContext.h"
 #include "core/svg/SVGMatrixTearOff.h"
 #include "platform/fonts/Font.h"
 #include "platform/graphics/Color.h"
 #include "platform/geometry/FloatSize.h"
 #include "platform/graphics/GraphicsTypes.h"
 #include "platform/graphics/ImageBuffer.h"
@@ skipping 17 matching lines @@
 class GraphicsContext;
 class HTMLCanvasElement;
 class HTMLImageElement;
 class HTMLVideoElement;
 class ImageBitmap;
 class ImageData;
 class TextMetrics;
 
 typedef HashMap<String, RefPtr<MutableStylePropertySet> > MutableStylePropertyMap;
 
-class CanvasRenderingContext2D FINAL : public CanvasRenderingContext, public CanvasPathMethods {
+class CanvasRenderingContext2D FINAL: public ScriptWrappable, public CanvasRenderingContext, public CanvasPathMethods {
 public:
     static PassOwnPtr<CanvasRenderingContext2D> create(HTMLCanvasElement* canvas, const Canvas2DContextAttributes* attrs, bool usesCSSCompatibilityParseMode)
     {
         return adoptPtr(new CanvasRenderingContext2D(canvas, attrs, usesCSSCompatibilityParseMode));
     }
     virtual ~CanvasRenderingContext2D();
 
     CanvasStyle* strokeStyle() const;
     void setStrokeStyle(PassRefPtr<CanvasStyle>);
 
@@ skipping 262 matching lines @@
     bool m_usesCSSCompatibilityParseMode;
     bool m_hasAlpha;
     MutableStylePropertyMap m_fetchedFonts;
 };
 
 DEFINE_TYPE_CASTS(CanvasRenderingContext2D, CanvasRenderingContext, context, context->is2d(), context.is2d());
 
 } // namespace WebCore
 
 #endif