Bug 1480496 - Add a profiler label frame to Loader::ParseSheet with the LAYOUT category r=mstange

MozReview-Commit-ID: CcuCs9fxTbT

--HG--
extra : rebase_source : eec3bb1c60a3fe1d724c302cfe6edfd226c8ac21

layout/style/Loader.cpp

@@ -1601,6 +1601,7 @@ Loader::ParseSheet(const nsACString& aBytes,
                    AllowAsyncParse aAllowAsync)
 {
   LOG(("css::Loader::ParseSheet"));
+  AUTO_PROFILER_LABEL("css::Loader::ParseSheet", LAYOUT);
   MOZ_ASSERT(aLoadData);
   aLoadData->mIsBeingParsed = true;