[DevTools] Always instrument async tasks in V8Debugger.

third_party/WebKit/Source/core/inspector/ThreadDebugger.h

 // Copyright 2016 The Chromium Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 #ifndef ThreadDebugger_h
 #define ThreadDebugger_h
 
 #include "core/CoreExport.h"
 #include "platform/Timer.h"
 #include "platform/UserGestureIndicator.h"
@@ skipping 30 matching lines @@
     unsigned promiseRejected(v8::Local<v8::Context>, const String16& errorMessage, v8::Local<v8::Value> exception, std::unique_ptr<SourceLocation>);
 
     // V8DebuggerClient implementation.
     void beginUserGesture() override;
     void endUserGesture() override;
     String16 valueSubtype(v8::Local<v8::Value>) override;
     bool formatAccessorsAsProperties(v8::Local<v8::Value>) override;
     bool isExecutionAllowed() override;
     double currentTimeMS() override;
     bool isInspectableHeapObject(v8::Local<v8::Object>) override;
-    void enableAsyncInstrumentation() override;
-    void disableAsyncInstrumentation() override;
     void installAdditionalCommandLineAPI(v8::Local<v8::Context>, v8::Local<v8::Object>) override;
     void consoleTime(const String16& title) override;
     void consoleTimeEnd(const String16& title) override;
     void consoleTimeStamp(const String16& title) override;
     void startRepeatingTimer(double, V8DebuggerClient::TimerCallback, void* data) override;
     void cancelTimer(void* data) override;
 
     V8Debugger* debugger() const { return m_debugger.get(); }
     virtual bool isWorker() { return true; }
     virtual void reportConsoleMessage(ExecutionContext*, ConsoleMessage*) = 0;
     virtual int contextGroupId(ExecutionContext*) = 0;
 
 protected:
     void createFunctionProperty(v8::Local<v8::Context>, v8::Local<v8::Object>, const char* name, v8::FunctionCallback, const char* description);
     void onTimer(TimerBase*);
 
     v8::Isolate* m_isolate;
     std::unique_ptr<V8Debugger> m_debugger;
 
 private:
     static void setMonitorEventsCallback(const v8::FunctionCallbackInfo<v8::Value>&, bool enabled);
     static void monitorEventsCallback(const v8::FunctionCallbackInfo<v8::Value>&);
     static void unmonitorEventsCallback(const v8::FunctionCallbackInfo<v8::Value>&);
 
     static void getEventListenersCallback(const v8::FunctionCallbackInfo<v8::Value>&);
 
-    bool m_asyncInstrumentationEnabled;
     Vector<std::unique_ptr<Timer<ThreadDebugger>>> m_timers;
     Vector<V8DebuggerClient::TimerCallback> m_timerCallbacks;
     Vector<void*> m_timerData;
     std::unique_ptr<UserGestureIndicator> m_userGestureIndicator;
 };
 
 } // namespace blink
 
 #endif // ThreadDebugger_h