Plumb in flag to enable antialiased clipping in HTML 5 Canvas

Source/core/html/HTMLCanvasElement.cpp

Index: Source/core/html/HTMLCanvasElement.cpp
diff --git a/Source/core/html/HTMLCanvasElement.cpp b/Source/core/html/HTMLCanvasElement.cpp
index 750e1fd6f566cc87902c094d100111be19cd0511..07fe72b0ec74983d839d7f2bb0eea293226bfff6 100644
--- a/Source/core/html/HTMLCanvasElement.cpp
+++ b/Source/core/html/HTMLCanvasElement.cpp
@@ -168,7 +168,8 @@ CanvasRenderingContext* HTMLCanvasElement::getContext(const String& type, Canvas
             return 0;
         if (!m_context) {
             blink::Platform::current()->histogramEnumeration("Canvas.ContextType", Context2d, ContextTypeCount);
-            m_context = CanvasRenderingContext2D::create(this, static_cast<Canvas2DContextAttributes*>(attrs), document().inQuirksMode());
+
+            m_context = CanvasRenderingContext2D::create(this, static_cast<Canvas2DContextAttributes*>(attrs), document());
             setNeedsCompositingUpdate();
         }
         return m_context.get();