Bug 1678487 - Color-manage system colors from style too. r=mstange

Differential Revision: https://phabricator.services.mozilla.com/D104947

widget/nsXPLookAndFeel.cpp

@@ -824,26 +824,23 @@ nsresult nsXPLookAndFeel::GetColorValue(ColorID aID,
   }
 
   if (NS_SUCCEEDED(NativeGetColor(aID, aResult))) {
-    // TODO(bug 1678487): We should color-correct style colors as well when in
-    // the traversal.
-    if (!mozilla::ServoStyleSet::IsInServoTraversal()) {
-      MOZ_ASSERT(NS_IsMainThread());
-      if (gfxPlatform::GetCMSMode() == CMSMode::All &&
-          !IsSpecialColor(aID, aResult)) {
-        qcms_transform* transform = gfxPlatform::GetCMSInverseRGBTransform();
-        if (transform) {
-          uint8_t color[4];
-          color[0] = NS_GET_R(aResult);
-          color[1] = NS_GET_G(aResult);
-          color[2] = NS_GET_B(aResult);
-          color[3] = NS_GET_A(aResult);
-          qcms_transform_data(transform, color, color, 1);
-          aResult = NS_RGBA(color[0], color[1], color[2], color[3]);
-        }
+    if (gfxPlatform::GetCMSMode() == CMSMode::All &&
+        !IsSpecialColor(aID, aResult)) {
+      qcms_transform* transform = gfxPlatform::GetCMSInverseRGBTransform();
+      if (transform) {
+        uint8_t color[4];
+        color[0] = NS_GET_R(aResult);
+        color[1] = NS_GET_G(aResult);
+        color[2] = NS_GET_B(aResult);
+        color[3] = NS_GET_A(aResult);
+        qcms_transform_data(transform, color, color, 1);
+        aResult = NS_RGBA(color[0], color[1], color[2], color[3]);
       }
-
-      CACHE_COLOR(aID, aResult);
     }
+
+    // NOTE: Servo holds a lock and the main thread is paused, so writing to the
+    // global cache here is fine.
+    CACHE_COLOR(aID, aResult);
     return NS_OK;
   }