Bug 1302705 - Add console warning about SVGSVGElement.deselectAll() being deprecated r=emilio

Differential Revision: https://phabricator.services.mozilla.com/D191859

dom/base/nsDeprecatedOperationList.h

@@ -55,6 +55,7 @@ DEPRECATED_OPERATION(ElementSetCapture)
 DEPRECATED_OPERATION(ElementReleaseCapture)
 DEPRECATED_OPERATION(DocumentReleaseCapture)
 DEPRECATED_OPERATION(OffscreenCanvasToBlob)
+DEPRECATED_OPERATION(SVGDeselectAll)
 DEPRECATED_OPERATION(SVGNearestViewportElement)
 DEPRECATED_OPERATION(SVGFarthestViewportElement)
 DEPRECATED_OPERATION(SizeToContent)

dom/locales/en-US/chrome/dom/dom.properties

@@ -304,6 +304,8 @@ WindowContentUntrustedWarning=The ‘content’ attribute of Window objects is d
 SVGRefLoopWarning=The SVG <%S> with ID “%S” has a reference loop.
 # LOCALIZATION NOTE: The first %S is the tag name of the element in the chain where the chain was broken, the second %S is the element's ID.
 SVGRefChainLengthExceededWarning=An SVG <%S> reference chain which is too long was abandoned at the element with ID “%S”.
+# LOCALIZATION NOTE: Do not translate SVGSVGElement.deselectAll.
+SVGDeselectAll=SVGSVGElement.deselectAll is deprecated as it duplicates functionality from the Selection API.
 # LOCALIZATION NOTE: Do not translate SVGGraphicsElement.nearestViewportElement or SVGElement.viewportElement.
 SVGNearestViewportElement=SVGGraphicsElement.nearestViewportElement is deprecated and will be removed at a future date. Use SVGElement.viewportElement instead.
 # LOCALIZATION NOTE: Do not translate SVGGraphicsElement.farthestViewportElement.

dom/webidl/SVGSVGElement.webidl

@@ -43,6 +43,7 @@ interface SVGSVGElement : SVGGraphicsElement {
   // NodeList getEnclosureList(SVGRect rect, SVGElement referenceElement);
   // boolean checkIntersection(SVGElement element, SVGRect rect);
   // boolean checkEnclosure(SVGElement element, SVGRect rect);
+  [Deprecated="SVGDeselectAll"]
   undefined deselectAll();
   [NewObject]
   SVGNumber createSVGNumber();