Bug 1454713. WebRenderUserData: Drop unnecessary T::Type() check. r=kats

Now that WebRenderUserData's a keyed on T::Type() we don't need to check it
after doing the lookup.

--HG--
extra : rebase_source : e20db22489b7689a241a79d2d74a54a220a60e3f

gfx/layers/wr/WebRenderCommandBuilder.h

@@ -133,7 +133,7 @@ public:
     }
 
     RefPtr<WebRenderUserData>& data = userDataTable->GetOrInsert(WebRenderUserDataKey(aItem->GetPerFrameKey(), T::Type()));
-    if (!data || (data->GetType() != T::Type())) {
+    if (!data) {
       // To recreate a new user data, we should remove the data from the table first.
       if (data) {
         data->RemoveFromTable();

gfx/layers/wr/WebRenderUserData.h

@@ -224,7 +224,7 @@ GetWebRenderUserData(nsIFrame* aFrame, uint32_t aPerFrameKey)
   }
 
   WebRenderUserData* data = userDataTable->GetWeak(WebRenderUserDataKey(aPerFrameKey, T::Type()));
-  if (data && (data->GetType() == T::Type())) {
+  if (data) {
     RefPtr<T> result = static_cast<T*>(data);
     return result.forget();
   }