Revert of https://codereview.chromium.org/1176073003/

Source/modules/canvas2d/CanvasRenderingContext2DState.cpp

Index: Source/modules/canvas2d/CanvasRenderingContext2DState.cpp
diff --git a/Source/modules/canvas2d/CanvasRenderingContext2DState.cpp b/Source/modules/canvas2d/CanvasRenderingContext2DState.cpp
index 1ca88aeaba356fb19b89d110b6133177b8f2d9ee..796428d8de17ddd90bc0da48269295bb4bea815c 100644
--- a/Source/modules/canvas2d/CanvasRenderingContext2DState.cpp
+++ b/Source/modules/canvas2d/CanvasRenderingContext2DState.cpp
@@ -458,7 +458,7 @@ SkXfermode::Mode CanvasRenderingContext2DState::globalComposite() const
 
 void CanvasRenderingContext2DState::setImageSmoothingEnabled(bool enabled)
 {
-    SkFilterQuality filterQuality = enabled ? kMedium_SkFilterQuality : kNone_SkFilterQuality;
+    SkFilterQuality filterQuality = enabled ? kLow_SkFilterQuality : kNone_SkFilterQuality;
     m_strokePaint.setFilterQuality(filterQuality);
     m_fillPaint.setFilterQuality(filterQuality);
     m_imagePaint.setFilterQuality(filterQuality);
@@ -466,7 +466,7 @@ void CanvasRenderingContext2DState::setImageSmoothingEnabled(bool enabled)
 
 bool CanvasRenderingContext2DState::imageSmoothingEnabled() const
 {
-    return m_imagePaint.getFilterQuality() == kMedium_SkFilterQuality;
+    return m_imagePaint.getFilterQuality() == kLow_SkFilterQuality;
 }
 
 bool CanvasRenderingContext2DState::shouldDrawShadows() const