Remove lineDash field in favor of gettors/settors.

sdk/lib/html/dartium/html_dartium.dart

Index: sdk/lib/html/dartium/html_dartium.dart
diff --git a/sdk/lib/html/dartium/html_dartium.dart b/sdk/lib/html/dartium/html_dartium.dart
index 9e74e4fa9d4b08c067295a9f561c995a7a139356..c4e50cd43d52abcb5e45247c4515e36a9c9a0ee1 100644
--- a/sdk/lib/html/dartium/html_dartium.dart
+++ b/sdk/lib/html/dartium/html_dartium.dart
@@ -1461,20 +1461,6 @@ class CanvasRenderingContext2D extends CanvasRenderingContext {
   @Experimental
   void set imageSmoothingEnabled(bool value) native "CanvasRenderingContext2D_webkitImageSmoothingEnabled_Setter";
 
-  @DomName('CanvasRenderingContext2D.webkitLineDash')
-  @DocsEditable
-  @SupportedBrowser(SupportedBrowser.CHROME)
-  @SupportedBrowser(SupportedBrowser.SAFARI)
-  @Experimental
-  List get lineDash native "CanvasRenderingContext2D_webkitLineDash_Getter";
-
-  @DomName('CanvasRenderingContext2D.webkitLineDash')
-  @DocsEditable
-  @SupportedBrowser(SupportedBrowser.CHROME)
-  @SupportedBrowser(SupportedBrowser.SAFARI)
-  @Experimental
-  void set lineDash(List value) native "CanvasRenderingContext2D_webkitLineDash_Setter";
-
   @DomName('CanvasRenderingContext2D.arc')
   @DocsEditable
   void $dom_arc(num x, num y, num radius, num startAngle, num endAngle, bool anticlockwise) native "CanvasRenderingContext2D_arc_Callback";