Make EImageRendering an enum class.

third_party/WebKit/Source/core/layout/compositing/CompositedLayerMapping.cpp

 /*
  * Copyright (C) 2009, 2010, 2011 Apple Inc. All rights reserved.
  *
  * Redistribution and use in source and binary forms, with or without
  * modification, are permitted provided that the following conditions
  * are met:
  * 1. Redistributions of source code must retain the above copyright
  *    notice, this list of conditions and the following disclaimer.
  * 2. Redistributions in binary form must reproduce the above copyright
  *    notice, this list of conditions and the following disclaimer in the
@@ skipping 2778 matching lines @@
 
   Image* image = cached_image->GetImage();
   if (!image)
     return;
 
   // This is a no-op if the layer doesn't have an inner layer for the image.
   graphics_layer_->SetContentsToImage(
       image, LayoutObject::ShouldRespectImageOrientation(&image_layout_object));
 
   graphics_layer_->SetFilterQuality(
-      GetLayoutObject().Style()->ImageRendering() == kImageRenderingPixelated
+      GetLayoutObject().Style()->ImageRendering() == EImageRendering::kPixelated
           ? kNone_SkFilterQuality
           : kLow_SkFilterQuality);
 
   // Prevent double-drawing: https://bugs.webkit.org/show_bug.cgi?id=58632
   UpdateDrawsContent();
 
   // Image animation is "lazy", in that it automatically stops unless someone is
   // drawing the image. So we have to kick the animation each time; this has the
   // downside that the image will keep animating, even if its layer is not
   // visible.
@@ skipping 852 matching lines @@
   } else if (graphics_layer == decoration_outline_layer_.get()) {
     name = "Decoration Layer";
   } else {
     NOTREACHED();
   }
 
   return name;
 }
 
 }  // namespace blink