Track reasons for |Node::SetNeedsStyleRecalc|

Source/core/inspector/InspectorCSSAgent.cpp

Index: Source/core/inspector/InspectorCSSAgent.cpp
diff --git a/Source/core/inspector/InspectorCSSAgent.cpp b/Source/core/inspector/InspectorCSSAgent.cpp
index ce198437f16bd84d878cd9de8961feea86d7c513..14628a378d5aa7733c60d427f97b0512e53c73b7 100644
--- a/Source/core/inspector/InspectorCSSAgent.cpp
+++ b/Source/core/inspector/InspectorCSSAgent.cpp
@@ -983,7 +983,7 @@ void InspectorCSSAgent::forcePseudoState(ErrorString* errorString, int nodeId, c
         m_nodeIdToForcedPseudoState.set(nodeId, forcedPseudoState);
     else
         m_nodeIdToForcedPseudoState.remove(nodeId);
-    element->ownerDocument()->setNeedsStyleRecalc(SubtreeStyleChange);
+    element->ownerDocument()->setNeedsStyleRecalc(StyleRecalcDueToInspector, SubtreeStyleChange);
 }
 
 PassRefPtr<TypeBuilder::CSS::CSSMedia> InspectorCSSAgent::buildMediaObject(const MediaList* media, MediaListSource mediaListSource, const String& sourceURL, CSSStyleSheet* parentStyleSheet)
@@ -1451,7 +1451,7 @@ void InspectorCSSAgent::resetPseudoStates()
 
     m_nodeIdToForcedPseudoState.clear();
     for (WillBeHeapHashSet<RawPtrWillBeMember<Document> >::iterator it = documentsToChange.begin(), end = documentsToChange.end(); it != end; ++it)
-        (*it)->setNeedsStyleRecalc(SubtreeStyleChange);
+        (*it)->setNeedsStyleRecalc(StyleRecalcDueToInspector, SubtreeStyleChange);
 }
 
 void InspectorCSSAgent::trace(Visitor* visitor)