DevTools: show extension name in console context switcher

Source/bindings/core/v8/DOMWrapperWorld.h

Index: Source/bindings/core/v8/DOMWrapperWorld.h
diff --git a/Source/bindings/core/v8/DOMWrapperWorld.h b/Source/bindings/core/v8/DOMWrapperWorld.h
index 82e147b3313ee417f0e79566e94baf1c8a401385..4ab6aa1a17f4731751f1f1134e2b280fb85b9fdd 100644
--- a/Source/bindings/core/v8/DOMWrapperWorld.h
+++ b/Source/bindings/core/v8/DOMWrapperWorld.h
@@ -91,6 +91,9 @@ public:
     static DOMWrapperWorld& mainWorld();
     static DOMWrapperWorld& privateScriptIsolatedWorld();
 
+    static void setIsolatedWorldHumanReadableName(int worldID, const String&);
+    String isolatedWorldHumanReadableName();
+
     // Associates an isolated world (see above for description) with a security
     // origin. XMLHttpRequest instances used in that world will be considered
     // to come from that origin, not the frame's.