Bug 1767121 - Change the type of StackingContextHelper::mScale to MatrixScales. r=botond

Fix a minor typo while at it: "Inherrited" -> "Inherited".

Differential Revision: https://phabricator.services.mozilla.com/D146298

gfx/layers/wr/WebRenderLayerManager.cpp

@@ -113,7 +113,8 @@ bool WebRenderLayerManager::Initialize(
 
   if (textureFactoryIdentifier.mParentBackend == LayersBackend::LAYERS_NONE ||
       idNamespace.isNothing()) {
-    gfxCriticalNote << "Failed to connect WebRenderBridgeChild. isParent=" << XRE_IsParentProcess();
+    gfxCriticalNote << "Failed to connect WebRenderBridgeChild. isParent="
+                    << XRE_IsParentProcess();
     aError.Append(hasInitialized ? "_POST"_ns : "_FIRST"_ns);
     return false;
   }