Add a WebDocument::watchCssSelectors(selectors)

Source/core/css/resolver/StyleResolver.cpp

Index: Source/core/css/resolver/StyleResolver.cpp
diff --git a/Source/core/css/resolver/StyleResolver.cpp b/Source/core/css/resolver/StyleResolver.cpp
index 45ff268a2759aa37b19cc9580245635b31bdcdea..e01acf3c9dbd81fb1c4b9bf1b8434c4ec5ae81dd 100644
--- a/Source/core/css/resolver/StyleResolver.cpp
+++ b/Source/core/css/resolver/StyleResolver.cpp
@@ -72,6 +72,7 @@
 #include "core/css/resolver/StyleBuilder.h"
 #include "core/css/resolver/TransformBuilder.h"
 #include "core/css/resolver/ViewportStyleResolver.h"
+#include "core/dom/CSSSelectorWatch.h"
 #include "core/dom/DocumentStyleSheetCollection.h"
 #include "core/dom/FullscreenController.h"
 #include "core/dom/NodeRenderStyle.h"
@@ -178,7 +179,7 @@ StyleResolver::StyleResolver(Document* document, bool matchAuthorAndUserStyles)
     m_styleTree.clear();
 
     DocumentStyleSheetCollection* styleSheetCollection = document->styleSheetCollection();
-    m_ruleSets.initUserStyle(styleSheetCollection, *m_medium, *this);
+    m_ruleSets.initUserStyle(styleSheetCollection, CSSSelectorWatch::from(document)->watchedCallbackSelectors(), *m_medium, *this);
 
 #if ENABLE(SVG_FONTS)
     if (document->svgExtensions()) {
@@ -1569,6 +1570,7 @@ void StyleResolver::applyProperties(const StylePropertySet* properties, StyleRul
 {
     ASSERT((propertyWhitelistType != PropertyWhitelistRegion) || m_state.regionForStyling());
     InspectorInstrumentationCookie cookie = InspectorInstrumentation::willProcessRule(document(), rule, this);
+    m_state.setRule(rule);
 
     unsigned propertyCount = properties->propertyCount();
     for (unsigned i = 0; i < propertyCount; ++i) {