Add support for type checking of floating point arguments as [TypeChecking=Unrestricted]

Source/core/html/canvas/CanvasRenderingContext2D.idl

 /*
  * Copyright (C) 2006 Apple Computer, 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 108 matching lines @@
     [RuntimeEnabled=ExperimentalCanvasFeatures, RaisesException, TypeChecking=Interface|Nullable] void drawImage(ImageBitmap imageBitmap, float x, float y, float width, float height);
     [RuntimeEnabled=ExperimentalCanvasFeatures, RaisesException, TypeChecking=Interface|Nullable] void drawImage(ImageBitmap imageBitmap, float sx, float sy, float sw, float sh, float dx, float dy, float dw, float dh);
 
     [RaisesException, TypeChecking=Interface|Nullable] void putImageData(ImageData imagedata, float dx, float dy);
     [RaisesException, TypeChecking=Interface|Nullable] void putImageData(ImageData imagedata, float dx, float dy, float dirtyX, float dirtyY, float dirtyWidth, float dirtyHeight);
 
     [RaisesException, TypeChecking=Interface|Nullable] CanvasPattern createPattern(HTMLCanvasElement canvas, [TreatNullAs=NullString] DOMString repetitionType);
     [RaisesException, TypeChecking=Interface|Nullable] CanvasPattern createPattern(HTMLImageElement image, [TreatNullAs=NullString] DOMString repetitionType);
     [RaisesException, TypeChecking=Interface|Nullable] CanvasPattern createPattern(HTMLVideoElement image, [TreatNullAs=NullString] DOMString repetitionType);
     [TypeChecking=Interface|Nullable] ImageData createImageData(ImageData imagedata);
-    [RaisesException] ImageData createImageData(float sw, float sh);
+    [RaisesException, TypeChecking=Unrestricted] ImageData createImageData(float sw, float sh);
 
     [Custom] attribute object strokeStyle;
     [Custom] attribute object fillStyle;
 
     // pixel manipulation
     [RaisesException] ImageData getImageData(float sx, float sy, float sw, float sh);
 
     // Focus rings
     [RuntimeEnabled=ExperimentalCanvasFeatures, TypeChecking=Interface|Nullable] void drawFocusIfNeeded(Element element);
     [RuntimeEnabled=ExperimentalCanvasFeatures, TypeChecking=Interface|Nullable] void drawFocusIfNeeded(Path2D path, Element element);
@@ skipping 23 matching lines @@
     [TypeChecking=Interface|Nullable, MeasureAs=CanvasRenderingContext2DDrawImageFromRect] void drawImageFromRect(
         HTMLImageElement? image, optional float sx, optional float sy, optional float sw, optional float sh,
         optional float dx, optional float dy, optional float dw, optional float dh, optional DOMString compositeOperation);
     [MeasureAs=CanvasRenderingContext2DSetShadow] void setShadow(float width, float height, float blur, [LegacyOverloadString] optional DOMString color, optional float alpha);
     [MeasureAs=CanvasRenderingContext2DSetShadow] void setShadow(float width, float height, float blur, float grayLevel, optional float alpha);
     [MeasureAs=CanvasRenderingContext2DSetShadow] void setShadow(float width, float height, float blur, float r, float g, float b, float a);
     [MeasureAs=CanvasRenderingContext2DSetShadow] void setShadow(float width, float height, float blur, float c, float m, float y, float k, float a);
 };
 
 CanvasRenderingContext2D implements CanvasPathMethods;