Bug 1909372 - Remove WebGLContextAttributes.colorSpace. r=gfx-reviewers,webidl,lsalzman,saschanaz

The WebGL spec never added this, and WebGL expects this to change via
drawingBufferColorSpace, so I don't think we should push for a spec
addition for .colorSpace.

Differential Revision: https://phabricator.services.mozilla.com/D217350

dom/canvas/ClientWebGLContext.cpp

@@ -741,16 +741,7 @@ void ClientWebGLContext::GetCanvas(
 void ClientWebGLContext::SetDrawingBufferColorSpace(
     const dom::PredefinedColorSpace val) {
   mDrawingBufferColorSpace = val;
-
-  // Just in case, update in Options too.
-  // Why not treat our WebGLContextOptions as the source of truth? Well,
-  // mNotLost is lost on context-loss, so we'd lose any setting we had here if
-  // that happens.
-  if (mNotLost) {
-    mNotLost->info.options.colorSpace = mDrawingBufferColorSpace;
-  }
-
-  Run<RPROC(SetDrawingBufferColorSpace)>(mDrawingBufferColorSpace);
+  Run<RPROC(SetDrawingBufferColorSpace)>(*mDrawingBufferColorSpace);
 }
 
 void ClientWebGLContext::GetContextAttributes(
@@ -1075,9 +1066,6 @@ ClientWebGLContext::SetContextOptions(JSContext* cx,
   if (attributes.mAntialias.WasPassed()) {
     newOpts.antialias = attributes.mAntialias.Value();
   }
-  if (attributes.mColorSpace.WasPassed()) {
-    newOpts.colorSpace = attributes.mColorSpace.Value();
-  }
 
   // Don't do antialiasing if we've disabled MSAA.
   if (!StaticPrefs::webgl_msaa_samples()) {