DevTools: simplify the async instrumentation harness.

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

 // 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.
 
 #include "core/inspector/ThreadDebugger.h"
 
 #include "bindings/core/v8/V8Binding.h"
 #include "bindings/core/v8/V8DOMException.h"
 #include "bindings/core/v8/V8DOMTokenList.h"
 #include "bindings/core/v8/V8HTMLAllCollection.h"
@@ skipping 34 matching lines @@
     if (V8DOMException::hasInstance(value, m_isolate))
         return "error";
     return String();
 }
 
 bool ThreadDebugger::formatAccessorsAsProperties(v8::Local<v8::Value> value)
 {
     return V8DOMWrapper::isWrapper(m_isolate, value);
 }
 
-bool ThreadDebugger::hasRecursionLevel()
-{
-    return !!v8::MicrotasksScope::GetCurrentDepth(m_isolate);
-}
-
 bool ThreadDebugger::isExecutionAllowed()
 {
     return !ScriptForbiddenScope::isScriptForbidden();
 }
 
 double ThreadDebugger::currentTimeMS()
 {
     return WTF::currentTimeMS();
 }
 
 
 } // namespace blink