Improve stack traces for async functions

src/inspector/v8-debugger.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_V8DEBUGGER_H_
 #define V8_INSPECTOR_V8DEBUGGER_H_
 
 #include "src/base/macros.h"
 #include "src/inspector/java-script-call-frame.h"
 #include "src/inspector/protocol/Forward.h"
@@ skipping 114 matching lines @@
                               v8::Local<v8::Object> eventData);
 
   v8::Local<v8::Value> collectionEntries(v8::Local<v8::Context>,
                                          v8::Local<v8::Object>);
   v8::Local<v8::Value> generatorObjectLocation(v8::Local<v8::Context>,
                                                v8::Local<v8::Object>);
   v8::Local<v8::Value> functionLocation(v8::Local<v8::Context>,
                                         v8::Local<v8::Function>);
   v8::MaybeLocal<v8::Value> functionScopes(v8::Local<v8::Context>,
                                            v8::Local<v8::Function>);
+  void asyncTaskScheduled(const String16& taskName, void* task, bool recurring,
+                          bool skipInitialFrame);
 
   v8::Isolate* m_isolate;
   V8InspectorImpl* m_inspector;
   int m_lastContextId;
   int m_enableCount;
   bool m_breakpointsActivated;
   v8::Global<v8::Object> m_debuggerScript;
   v8::Global<v8::Context> m_debuggerContext;
   v8::Local<v8::Object> m_executionState;
   v8::Local<v8::Context> m_pausedContext;
   bool m_runningNestedMessageLoop;
   int m_ignoreScriptParsedEventsCounter;
 
   using AsyncTaskToStackTrace =
       protocol::HashMap<void*, std::unique_ptr<V8StackTraceImpl>>;
   AsyncTaskToStackTrace m_asyncTaskStacks;
   protocol::HashSet<void*> m_recurringTasks;
   int m_maxAsyncCallStackDepth;
   std::vector<void*> m_currentTasks;
   std::vector<std::unique_ptr<V8StackTraceImpl>> m_currentStacks;
   protocol::HashMap<V8DebuggerAgentImpl*, int> m_maxAsyncCallStackDepthMap;
 };
 
 }  // namespace v8_inspector
 
 #endif  // V8_INSPECTOR_V8DEBUGGER_H_