[inspector] introduced stepIntoAsync for chained callbacks

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 <vector>
 
 #include "src/base/macros.h"
@@ skipping 30 matching lines @@
 
   v8::debug::ExceptionBreakState getPauseOnExceptionsState();
   void setPauseOnExceptionsState(v8::debug::ExceptionBreakState);
   void setPauseOnNextStatement(bool);
   bool canBreakProgram();
   void breakProgram();
   void continueProgram();
   void stepIntoStatement();
   void stepOverStatement();
   void stepOutOfFunction();
+  Response stepIntoScheduledCallback();
+  bool stepIntoScheduledCallbackAvailable();
 
   Response setScriptSource(
       const String16& sourceID, v8::Local<v8::String> newSource, bool dryRun,
       protocol::Maybe<protocol::Runtime::ExceptionDetails>*,
       JavaScriptCallFrames* newCallFrames, protocol::Maybe<bool>* stackChanged,
       bool* compileError);
   JavaScriptCallFrames currentCallFrames(int limit = 0);
 
   // Each script inherits debug data from v8::Context where it has been
   // compiled.
@@ skipping 61 matching lines @@
                                             ScopeTargetKind);
 
   v8::MaybeLocal<v8::Value> functionScopes(v8::Local<v8::Context>,
                                            v8::Local<v8::Function>);
   v8::MaybeLocal<v8::Value> generatorScopes(v8::Local<v8::Context>,
                                             v8::Local<v8::Value>);
 
   void asyncTaskCreated(void* task, void* parentTask);
   void registerAsyncTaskIfNeeded(void* task);
 
+  void continueProgramImpl();
+
   // v8::debug::DebugEventListener implementation.
-  void PromiseEventOccurred(v8::debug::PromiseDebugActionType type, int id,
-                            int parentId) override;
+  void PromiseEventOccurred(v8::Local<v8::Context> context,
+                            v8::debug::PromiseDebugActionType type, int id,
+                            int parentId, bool breakable) override;
   void ScriptCompiled(v8::Local<v8::debug::Script> script,
                       bool has_compile_error) override;
   void BreakProgramRequested(v8::Local<v8::Context> paused_context,
                              v8::Local<v8::Object> exec_state,
                              v8::Local<v8::Value> break_points_hit) override;
   void ExceptionThrown(v8::Local<v8::Context> paused_context,
                        v8::Local<v8::Object> exec_state,
                        v8::Local<v8::Value> exception,
                        v8::Local<v8::Value> promise, bool is_uncaught) override;
   bool IsFunctionBlackboxed(v8::Local<v8::debug::Script> script,
                             const v8::debug::Location& start,
                             const v8::debug::Location& end) override;
 
+  int currentContextGroupId();
+  void steppingOnPromiseEvent(v8::Local<v8::Context> context,
+                              v8::debug::PromiseDebugActionType type,
+                              void* task, void* parentPtr);
+
   v8::Isolate* m_isolate;
   V8InspectorImpl* m_inspector;
   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;
   bool m_scheduledOOMBreak = false;
 
   using AsyncTaskToStackTrace =
       protocol::HashMap<void*, std::unique_ptr<V8StackTraceImpl>>;
   AsyncTaskToStackTrace m_asyncTaskStacks;
   AsyncTaskToStackTrace m_asyncTaskCreationStacks;
   int m_maxAsyncCallStacks;
   std::map<int, void*> m_idToTask;
   std::unordered_map<void*, int> m_taskToId;
   int m_lastTaskId;
   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;
   protocol::HashMap<void*, void*> m_parentTask;
+  protocol::HashSet<void*> m_tasksWithScheduledBreak;
+  void* m_createdPromiseTask = nullptr;
 
   v8::debug::ExceptionBreakState m_pauseOnExceptionsState;
 
   WasmTranslation m_wasmTranslation;
 
   DISALLOW_COPY_AND_ASSIGN(V8Debugger);
 };
 
 }  // namespace v8_inspector
 
 #endif  // V8_INSPECTOR_V8DEBUGGER_H_