DevTools: speculative fix of crash in PageDebuggerAgent::restore

Source/core/inspector/InspectorDebuggerAgent.h

Index: Source/core/inspector/InspectorDebuggerAgent.h
diff --git a/Source/core/inspector/InspectorDebuggerAgent.h b/Source/core/inspector/InspectorDebuggerAgent.h
index 233e310689c5df581e3a4958c045740356674ed8..37e9705a8d78bca536bec3f60cb816bba462a8f6 100644
--- a/Source/core/inspector/InspectorDebuggerAgent.h
+++ b/Source/core/inspector/InspectorDebuggerAgent.h
@@ -86,9 +86,9 @@ public:
 
     void canSetScriptSource(ErrorString*, bool* result) final { *result = true; }
 
-    void init() override final;
-    void restore() override final;
-    void disable(ErrorString*) override final;
+    void init() final;
+    void restore() override;
+    void disable(ErrorString*) final;
 
     bool isPaused();
     void addMessageToConsole(ConsoleMessage*);