Revert of Collect active stylesheets and and apply asynchronously.

third_party/WebKit/Source/core/css/FontFaceSet.cpp

Index: third_party/WebKit/Source/core/css/FontFaceSet.cpp
diff --git a/third_party/WebKit/Source/core/css/FontFaceSet.cpp b/third_party/WebKit/Source/core/css/FontFaceSet.cpp
index f50b821f6b9fad50b507d5c460851f06e8e8bb67..48833a079977f841102207e136ef40f9c784e34e 100644
--- a/third_party/WebKit/Source/core/css/FontFaceSet.cpp
+++ b/third_party/WebKit/Source/core/css/FontFaceSet.cpp
@@ -310,9 +310,9 @@
 
 const HeapListHashSet<Member<FontFace>>& FontFaceSet::cssConnectedFontFaceList()
     const {
-  Document* document = this->document();
-  document->updateActiveStyle();
-  return document->styleEngine()
+  Document* d = document();
+  d->ensureStyleResolver();  // Flush pending style changes.
+  return d->styleEngine()
       .fontSelector()
       ->fontFaceCache()
       ->cssConnectedFontFaces();
@@ -467,7 +467,6 @@
 
   style->font().update(style->font().getFontSelector());
 
-  document()->updateActiveStyle();
   document()->ensureStyleResolver().computeFont(style.get(), *parsedStyle);
 
   font = style->font();