[inspector] changed a way of preserving stepping between tasks

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 23 matching lines @@
   bool enabled() const;
 
   String16 setBreakpoint(const ScriptBreakpoint&, int* actualLineNumber,
                          int* actualColumnNumber);
   void removeBreakpoint(const String16& breakpointId);
   void setBreakpointsActivated(bool);
   bool breakpointsActivated() const { return m_breakpointsActivated; }
 
   v8::debug::ExceptionBreakState getPauseOnExceptionsState();
   void setPauseOnExceptionsState(v8::debug::ExceptionBreakState);
-  void setPauseOnNextStatement(bool);
   bool canBreakProgram();
   void breakProgram();
   void continueProgram();
-  void stepIntoStatement();
-  void stepOverStatement();
-  void stepOutOfFunction();
+
+  void setPauseOnNextStatement(bool, int targetContextGroupId);
+  void stepIntoStatement(int targetContextGroupId);
+  void stepOverStatement(int targetContextGroupId);
+  void stepOutOfFunction(int targetContextGroupId);
 
   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 94 matching lines @@
   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;
+  int m_targetContextGroupId = 0;
 
   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::HashMap<void*, void*> m_firstNextTask;
   void* m_taskWithScheduledBreak = nullptr;
 
   v8::debug::ExceptionBreakState m_pauseOnExceptionsState;
 
   WasmTranslation m_wasmTranslation;
 
   DISALLOW_COPY_AND_ASSIGN(V8Debugger);
 };
 
 }  // namespace v8_inspector
 
 #endif  // V8_INSPECTOR_V8DEBUGGER_H_