Introduce Element::AttributeModificationParams

third_party/WebKit/Source/core/html/HTMLCanvasElement.h

 /*
  * Copyright (C) 2004, 2006, 2009, 2010 Apple Inc. All rights reserved.
  * Copyright (C) 2007 Alp Toker <alp@atoker.com>
  * Copyright (C) 2010 Torch Mobile (Beijing) Co. Ltd. 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.
@@ skipping 234 matching lines @@
   explicit HTMLCanvasElement(Document&);
   void dispose();
 
   using ContextFactoryVector =
       Vector<std::unique_ptr<CanvasRenderingContextFactory>>;
   static ContextFactoryVector& renderingContextFactories();
   static CanvasRenderingContextFactory* getRenderingContextFactory(int);
 
   bool shouldAccelerate(const IntSize&) const;
 
-  void parseAttribute(const QualifiedName&,
-                      const AtomicString&,
-                      const AtomicString&) override;
+  void parseAttribute(const AttributeModificationParams&) override;
   LayoutObject* createLayoutObject(const ComputedStyle&) override;
   bool areAuthorShadowsAllowed() const override { return false; }
 
   void reset();
 
   std::unique_ptr<ImageBufferSurface> createWebGLImageBufferSurface(
       const IntSize& deviceSize,
       OpacityMode);
   std::unique_ptr<ImageBufferSurface> createAcceleratedImageBufferSurface(
       const IntSize& deviceSize,
@@ skipping 43 matching lines @@
   // Used for OffscreenCanvas that controls this HTML canvas element
   std::unique_ptr<CanvasSurfaceLayerBridge> m_surfaceLayerBridge;
 
   int m_numFramesSinceLastRenderingModeSwitch;
   bool m_pendingRenderingModeSwitch;
 };
 
 }  // namespace blink
 
 #endif  // HTMLCanvasElement_h