[Reland] DevTools: Make WorkerThreadDebugger available for Worklets

third_party/WebKit/Source/core/workers/WorkerThread.h

Index: third_party/WebKit/Source/core/workers/WorkerThread.h
diff --git a/third_party/WebKit/Source/core/workers/WorkerThread.h b/third_party/WebKit/Source/core/workers/WorkerThread.h
index 2725d6c335a1ae0de43ccd8a09c52d22cf18dd1c..fe717c3433d1be1280b13cec685f7502b3d5d8b8 100644
--- a/third_party/WebKit/Source/core/workers/WorkerThread.h
+++ b/third_party/WebKit/Source/core/workers/WorkerThread.h
@@ -122,7 +122,6 @@ class CORE_EXPORT WorkerThread : public WebThread::TaskObserver {
   ConsoleMessageStorage* consoleMessageStorage() const {
     return m_consoleMessageStorage.get();
   }
-  virtual bool shouldAttachThreadDebugger() const { return true; }
   v8::Isolate* isolate();
 
   bool isCurrentThread();
@@ -163,6 +162,8 @@ class CORE_EXPORT WorkerThread : public WebThread::TaskObserver {
   // thread and the returned set must not be stored for future use.
   static HashSet<WorkerThread*>& workerThreads();
 
+  int getWorkerThreadId() const { return m_workerThreadId; }
+
   PlatformThreadId platformThreadId();
 
   bool isForciblyTerminated();
@@ -257,6 +258,9 @@ class CORE_EXPORT WorkerThread : public WebThread::TaskObserver {
 
   ExitCode getExitCodeForTesting();
 
+  // A unique identifier among all WorkerThreads.
+  const int m_workerThreadId;
+
   // Accessed only on the main thread.
   bool m_requestedToStart = false;