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

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

Index: src/inspector/v8-stack-trace-impl.h
diff --git a/src/inspector/v8-stack-trace-impl.h b/src/inspector/v8-stack-trace-impl.h
index f0a452e9390dd8dccbbdadac41103dfeae4b32ad..e0b3e3f0cc870a590e4cda53a82247c877902091 100644
--- a/src/inspector/v8-stack-trace-impl.h
+++ b/src/inspector/v8-stack-trace-impl.h
@@ -56,10 +56,12 @@ class V8StackTraceImpl final : public V8StackTrace {
                                                         bool capture);
   static std::unique_ptr<V8StackTraceImpl> create(
       V8Debugger*, int contextGroupId, v8::Local<v8::StackTrace>,
-      size_t maxStackSize, const String16& description = String16());
+      size_t maxStackSize, const String16& description = String16(),
+      std::unique_ptr<V8StackTraceImpl> creationStackTrace = nullptr);
   static std::unique_ptr<V8StackTraceImpl> capture(
       V8Debugger*, int contextGroupId, size_t maxStackSize,
-      const String16& description = String16());
+      const String16& description = String16(),
+      std::unique_ptr<V8StackTraceImpl> creationStackTrace = nullptr);
 
   // This method drops the async chain. Use cloneImpl() instead.
   std::unique_ptr<V8StackTrace> clone() override;
@@ -84,12 +86,14 @@ class V8StackTraceImpl final : public V8StackTrace {
  private:
   V8StackTraceImpl(int contextGroupId, const String16& description,
                    std::vector<Frame>& frames,
-                   std::unique_ptr<V8StackTraceImpl> parent);
+                   std::unique_ptr<V8StackTraceImpl> parent,
+                   std::unique_ptr<V8StackTraceImpl> creation);
 
   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);
 };