https://bugs.webkit.org/show_bug.cgi?id=77602

Reviewed by Adam Barth.

This patch renames [ConvertNullToNullString] to [TreatNullAs=EmptyString],
according to the spec (http://dev.w3.org/2006/webapi/WebIDL/#TreatNullAs).

No tests. No changes in behavior.

* bindings/scripts/CodeGeneratorJS.pm:
(JSValueToNative):
* bindings/scripts/CodeGeneratorV8.pm:
(GetNativeTypeFromSignature):

* css/CSSCharsetRule.idl:
* css/CSSPageRule.idl:
* css/CSSRule.idl:
* css/CSSStyleDeclaration.idl:
* css/CSSStyleRule.idl:
* css/CSSValue.idl:
* css/MediaList.idl:
* css/WebKitCSSKeyframesRule.idl:
* dom/Attr.idl:
* dom/CharacterData.idl:
* dom/DOMImplementation.idl:
* dom/Document.idl:
* dom/Element.idl:
* dom/NamedNodeMap.idl:
* dom/Node.idl:
* dom/ProcessingInstruction.idl:
* dom/ShadowRoot.idl:
* html/HTMLAnchorElement.idl:
* html/HTMLButtonElement.idl:
* html/HTMLDocument.idl:
* html/HTMLElement.idl:
* html/HTMLFormElement.idl:
* html/HTMLFrameElement.idl:
* html/HTMLInputElement.idl:
* html/HTMLMediaElement.idl:
* html/HTMLOutputElement.idl:
* html/HTMLScriptElement.idl:
* html/HTMLSelectElement.idl:
* html/HTMLTextAreaElement.idl:
* html/HTMLTitleElement.idl:
* html/canvas/CanvasRenderingContext2D.idl:
* page/DOMWindow.idl:
* storage/StorageEvent.idl:
* svg/SVGAngle.idl:
* svg/SVGElement.idl:
* svg/SVGLength.idl:
* svg/SVGScriptElement.idl:

* bindings/scripts/test/TestObj.idl: No change in the run-bindings-tests results.


git-svn-id: http://svn.webkit.org/repository/webkit/trunk@106534 268f45cc-cd09-0410-ab3c-d52691b4dbfc