Trigger repaint on first paint only on pending stylesheet decrement.

third_party/WebKit/Source/core/dom/StyleEngine.cpp

Index: third_party/WebKit/Source/core/dom/StyleEngine.cpp
diff --git a/third_party/WebKit/Source/core/dom/StyleEngine.cpp b/third_party/WebKit/Source/core/dom/StyleEngine.cpp
index b43eaed76c36ce30fae05fc568703f08ab850812..a40a5160670c89680f21ecd02f3c312a3af17490 100644
--- a/third_party/WebKit/Source/core/dom/StyleEngine.cpp
+++ b/third_party/WebKit/Source/core/dom/StyleEngine.cpp
@@ -439,7 +439,7 @@ void StyleEngine::resolverChanged(StyleResolverUpdateMode mode)
 {
     if (!isMaster()) {
         if (Document* master = this->master())
-            master->styleResolverChanged(mode);
+            master->styleEngine().resolverChanged(mode);
         return;
     }