DevTools: use v8::Isolate::RequestInterrupt instead of v8::Debug::DebugBreakForCommand

Source/bindings/core/v8/ScriptDebugServer.h

Index: Source/bindings/core/v8/ScriptDebugServer.h
diff --git a/Source/bindings/core/v8/ScriptDebugServer.h b/Source/bindings/core/v8/ScriptDebugServer.h
index 68a02b408b05fe4b6ee7a6db731eb74015ef9234..5d3f9ebf86cb520932862350566e526be12cf452 100644
--- a/Source/bindings/core/v8/ScriptDebugServer.h
+++ b/Source/bindings/core/v8/ScriptDebugServer.h
@@ -141,6 +141,7 @@ protected:
     v8::Isolate* m_isolate;
 
 private:
+    static void v8InterruptCallback(v8::Isolate*, void*);
     static void v8DebugEventCallback(const v8::Debug::EventDetails&);
     void handleV8DebugEvent(const v8::Debug::EventDetails&);
 
@@ -163,6 +164,8 @@ private:
     v8::Local<v8::Object> m_executionState;
     RefPtr<ScriptState> m_pausedScriptState;
     bool m_runningNestedMessageLoop;
+    class ThreadSafeTaskQueue;
+    OwnPtr<ThreadSafeTaskQueue> m_taskQueue;
 };
 
 } // namespace blink