DevTools: [wip] do not use InspectorInstrumentation for will/didProcessTask events.

Source/bindings/core/v8/WorkerScriptDebugServer.cpp

Index: Source/bindings/core/v8/WorkerScriptDebugServer.cpp
diff --git a/Source/bindings/core/v8/WorkerScriptDebugServer.cpp b/Source/bindings/core/v8/WorkerScriptDebugServer.cpp
index 41b5a0d1fba6c823d788b0660a4a1fd056eea9d0..3dcf655bcc585be763bd9af73b69c4b0b61fb201 100644
--- a/Source/bindings/core/v8/WorkerScriptDebugServer.cpp
+++ b/Source/bindings/core/v8/WorkerScriptDebugServer.cpp
@@ -43,9 +43,10 @@ namespace blink {
 
 static const char* workerContextDebugId = "[worker]";
 
-WorkerScriptDebugServer::WorkerScriptDebugServer(WorkerGlobalScope* workerGlobalScope)
+WorkerScriptDebugServer::WorkerScriptDebugServer(WebThread::TaskObserver* taskObserver, WorkerGlobalScope* workerGlobalScope)
     : PerIsolateDebuggerClient(v8::Isolate::GetCurrent(), ScriptDebugServer::create(v8::Isolate::GetCurrent(), this))
     , m_listener(nullptr)
+    , m_taskObserver(taskObserver)
     , m_workerGlobalScope(workerGlobalScope)
 {
 }
@@ -90,12 +91,12 @@ ScriptDebugListener* WorkerScriptDebugServer::getDebugListenerForContext(v8::Loc
 void WorkerScriptDebugServer::runMessageLoopOnPause(v8::Local<v8::Context>)
 {
     MessageQueueWaitResult result;
-    m_workerGlobalScope->thread()->willEnterNestedLoop();
+    m_taskObserver->willProcessTask();
     do {
         result = m_workerGlobalScope->thread()->runDebuggerTask();
     // Keep waiting until execution is resumed.
     } while (result == MessageQueueMessageReceived && scriptDebugServer()->isPaused());
-    m_workerGlobalScope->thread()->didLeaveNestedLoop();
+    m_taskObserver->didProcessTask();
 
     // The listener may have been removed in the nested loop.
     if (m_listener)