[inspector] added creation frame for async call chains for promises

src/inspector/v8-stack-trace-impl.h

 // Copyright 2016 the V8 project 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 V8_INSPECTOR_V8STACKTRACEIMPL_H_
 #define V8_INSPECTOR_V8STACKTRACEIMPL_H_
 
 #include <vector>
 
 #include "src/base/macros.h"
@@ skipping 63 matching lines @@
   bool isEmpty() const override { return !m_frames.size(); };
   StringView topSourceURL() const override;
   int topLineNumber() const override;
   int topColumnNumber() const override;
   StringView topScriptId() const override;
   StringView topFunctionName() const override;
   std::unique_ptr<protocol::Runtime::API::StackTrace> buildInspectorObject()
       const override;
   std::unique_ptr<StringBuffer> toString() const override;
 
+  void setCreation(std::unique_ptr<V8StackTraceImpl> creation);
+
  private:
   V8StackTraceImpl(int contextGroupId, const String16& description,
                    std::vector<Frame>& frames,
                    std::unique_ptr<V8StackTraceImpl> parent);
 
   int m_contextGroupId;
   String16 m_description;
   std::vector<Frame> m_frames;
   std::unique_ptr<V8StackTraceImpl> m_parent;
+  std::unique_ptr<V8StackTraceImpl> m_creation;
 
   DISALLOW_COPY_AND_ASSIGN(V8StackTraceImpl);
 };
 
 }  // namespace v8_inspector
 
 #endif  // V8_INSPECTOR_V8STACKTRACEIMPL_H_