Oilpan: Ensure that classes with virtual trace methods always have vtables for their left-most base…

Source/core/inspector/InspectorResourceContentLoader.cpp

Index: Source/core/inspector/InspectorResourceContentLoader.cpp
diff --git a/Source/core/inspector/InspectorResourceContentLoader.cpp b/Source/core/inspector/InspectorResourceContentLoader.cpp
index 5631afdb8ea80bf00ebe3cd0263cbcc5b09ebb16..3de3411cc167a66b63b165267e06e0b078b14839 100644
--- a/Source/core/inspector/InspectorResourceContentLoader.cpp
+++ b/Source/core/inspector/InspectorResourceContentLoader.cpp
@@ -38,6 +38,12 @@ public:
             resource->addClient(static_cast<StyleSheetResourceClient*>(this));
     }
 
+    virtual void trace(Visitor* visitor) OVERRIDE
+    {
+        RawResourceClient::trace(visitor);
+        StyleSheetResourceClient::trace(visitor);
+    }
+
 private:
     InspectorResourceContentLoader* m_loader;