[inspector] implemented blackboxing inside v8

src/debug/debug.h

Index: src/debug/debug.h
diff --git a/src/debug/debug.h b/src/debug/debug.h
index 86c5b4bf3f4e79ee515c587f021472d8252b3b6b..2b8aa868a49f38a5f12727cb6adaa9330bc4f016 100644
--- a/src/debug/debug.h
+++ b/src/debug/debug.h
@@ -467,6 +467,11 @@ class Debug {
 
   int NextAsyncTaskId(Handle<JSObject> promise);
 
+  bool IsBlackboxed(Handle<SharedFunctionInfo> shared);
+
+  void SetIsBlackboxedCallback(debug::IsBlackboxedCallback callback,
+                               void* data);
+
   void SetDebugEventListener(debug::DebugEventListener* listener);
 
   // Returns whether the operation succeeded. Compilation can only be triggered
@@ -680,6 +685,9 @@ class Debug {
 
   debug::DebugEventListener* debug_event_listener_ = nullptr;
 
+  debug::IsBlackboxedCallback is_blackboxed_callback_ = nullptr;
+  void* is_blackboxed_callback_data_ = nullptr;
+
   static const int kQueueInitialSize = 4;
   base::Semaphore command_received_;  // Signaled for each command received.
   LockingCommandMessageQueue command_queue_;