Implement InterpolationMedium to filter animated images

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 4ea22121fa982da6aa7d0e3754e0d820cd904e05..f25930e0ab604ebb22abf0e8d9afc8f76f360279 100644
--- a/Source/core/html/HTMLCanvasElement.cpp
+++ b/Source/core/html/HTMLCanvasElement.cpp
@@ -303,7 +303,7 @@ bool HTMLCanvasElement::paintsIntoCanvasBuffer() const
 }
 
 
-void HTMLCanvasElement::paint(GraphicsContext* context, const LayoutRect& r, bool useLowQualityScale)
+void HTMLCanvasElement::paint(GraphicsContext* context, const LayoutRect& r)
 {
     // Clear the dirty rect
     m_dirtyRect = FloatRect();
@@ -322,9 +322,9 @@ void HTMLCanvasElement::paint(GraphicsContext* context, const LayoutRect& r, boo
         if (imageBuffer) {
             CompositeOperator compositeOperator = !m_context || m_context->hasAlpha() ? CompositeSourceOver : CompositeCopy;
             if (m_presentedImage)
-                context->drawImage(m_presentedImage.get(), pixelSnappedIntRect(r), compositeOperator, DoNotRespectImageOrientation, useLowQualityScale);
+                context->drawImage(m_presentedImage.get(), pixelSnappedIntRect(r), compositeOperator, DoNotRespectImageOrientation);
             else
-                context->drawImageBuffer(imageBuffer, pixelSnappedIntRect(r), compositeOperator, blink::WebBlendModeNormal, useLowQualityScale);
+                context->drawImageBuffer(imageBuffer, pixelSnappedIntRect(r), compositeOperator, blink::WebBlendModeNormal);
         }
     }
 
@@ -482,7 +482,7 @@ void HTMLCanvasElement::createImageBuffer()
     }
 
     m_imageBuffer->context()->setShouldClampToSourceRect(false);
-    m_imageBuffer->context()->setImageInterpolationQuality(DefaultInterpolationQuality);
+    m_imageBuffer->context()->setImageInterpolationQuality(CanvasDefaultInterpolationQuality);
     // Enabling MSAA overrides a request to disable antialiasing. This is true regardless of whether the
     // rendering mode is accelerated or not. For consistency, we don't want to apply AA in accelerated
     // canvases but not in unaccelerated canvases.