Backed out changeset 2370d0618783 (bug 1851395) for bustages on CanvasImageCache.cpp . CLOSED TREE

dom/webidl/CanvasRenderingContext2D.webidl

@@ -192,7 +192,7 @@ interface mixin CanvasFillStrokeStyles {
   CanvasGradient createLinearGradient(double x0, double y0, double x1, double y1);
   [NewObject, Throws]
   CanvasGradient createRadialGradient(double x0, double y0, double r0, double x1, double y1, double r1);
-  [NewObject]
+  [Pref="canvas.createConicGradient.enabled", NewObject]
   CanvasGradient createConicGradient(double angle, double cx, double cy);
   [NewObject, Throws]
   CanvasPattern? createPattern(CanvasImageSource image, [LegacyNullToEmptyString] DOMString repetition);

modules/libpref/init/StaticPrefList.yaml

@@ -1814,6 +1814,16 @@
   value: @IS_NOT_ANDROID@
   mirror: always
 
+#---------------------------------------------------------------------------
+# Prefs starting with "canvas."
+#---------------------------------------------------------------------------
+
+# Is support for CanvasRenderingContext2D's createConicGradient API enabled?
+- name: canvas.createConicGradient.enabled
+  type: RelaxedAtomicBool
+  value: true
+  mirror: always
+
 #---------------------------------------------------------------------------
 # Prefs starting with "channelclassifier."
 #---------------------------------------------------------------------------

modules/libpref/moz.build

@@ -33,6 +33,7 @@ pref_groups = [
     "beacon",
     "bidi",
     "browser",
+    "canvas",
     "channelclassifier",
     "clipboard",
     "content",