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

Source/core/inspector/WorkerDebuggerAgent.cpp

Index: Source/core/inspector/WorkerDebuggerAgent.cpp
diff --git a/Source/core/inspector/WorkerDebuggerAgent.cpp b/Source/core/inspector/WorkerDebuggerAgent.cpp
index 7026b98549ca49054ffef4f9069325734571b16b..bc9cfacbb24c8a6085f650b53c415735a59d9d75 100644
--- a/Source/core/inspector/WorkerDebuggerAgent.cpp
+++ b/Source/core/inspector/WorkerDebuggerAgent.cpp
@@ -31,7 +31,7 @@
 #include "config.h"
 #include "core/inspector/WorkerDebuggerAgent.h"
 
-#include "bindings/core/v8/ScriptDebugServer.h"
+#include "bindings/core/v8/WorkerScriptDebugServer.h"
 #include "core/inspector/InjectedScript.h"
 #include "core/inspector/WorkerInspectorController.h"
 #include "core/workers/WorkerGlobalScope.h"
@@ -44,33 +44,34 @@ namespace {
 
 class RunInspectorCommandsTask final : public ScriptDebugServer::Task {
 public:
-    explicit RunInspectorCommandsTask(WorkerThread* thread)
-        : m_thread(thread) { }
+    explicit RunInspectorCommandsTask(WorkerThread* thread, WebThread::TaskObserver* taskObserver)
+        : m_thread(thread)
+        , m_taskObserver(taskObserver) { }
     virtual ~RunInspectorCommandsTask() { }
     virtual void run() override
     {
-        // Process all queued debugger commands. WorkerThread is certainly
-        // alive if this task is being executed.
-        m_thread->willEnterNestedLoop();
+        m_taskObserver->willProcessTask();
         while (MessageQueueMessageReceived == m_thread->runDebuggerTask(WorkerThread::DontWaitForMessage)) { }
-        m_thread->didLeaveNestedLoop();
+        m_taskObserver->didProcessTask();
     }
 
 private:
     WorkerThread* m_thread;
+    WebThread::TaskObserver* m_taskObserver;
 };
 
 } // namespace
 
-PassOwnPtrWillBeRawPtr<WorkerDebuggerAgent> WorkerDebuggerAgent::create(WorkerScriptDebugServer* scriptDebugServer, WorkerGlobalScope* inspectedWorkerGlobalScope, InjectedScriptManager* injectedScriptManager)
+PassOwnPtrWillBeRawPtr<WorkerDebuggerAgent> WorkerDebuggerAgent::create(WorkerScriptDebugServer* scriptDebugServer, WorkerGlobalScope* inspectedWorkerGlobalScope, InjectedScriptManager* injectedScriptManager, WebThread::TaskObserver* taskObserver)
 {
-    return adoptPtrWillBeNoop(new WorkerDebuggerAgent(scriptDebugServer, inspectedWorkerGlobalScope, injectedScriptManager));
+    return adoptPtrWillBeNoop(new WorkerDebuggerAgent(scriptDebugServer, inspectedWorkerGlobalScope, injectedScriptManager, taskObserver));
 }
 
-WorkerDebuggerAgent::WorkerDebuggerAgent(WorkerScriptDebugServer* scriptDebugServer, WorkerGlobalScope* inspectedWorkerGlobalScope, InjectedScriptManager* injectedScriptManager)
+WorkerDebuggerAgent::WorkerDebuggerAgent(WorkerScriptDebugServer* scriptDebugServer, WorkerGlobalScope* inspectedWorkerGlobalScope, InjectedScriptManager* injectedScriptManager, WebThread::TaskObserver* taskObserver)
     : InspectorDebuggerAgent(injectedScriptManager, scriptDebugServer->scriptDebugServer()->isolate())
     , m_scriptDebugServer(scriptDebugServer)
     , m_inspectedWorkerGlobalScope(inspectedWorkerGlobalScope)
+    , m_taskObserver(taskObserver)
 {
 }
 
@@ -86,7 +87,7 @@ DEFINE_TRACE(WorkerDebuggerAgent)
 
 void WorkerDebuggerAgent::interruptAndDispatchInspectorCommands()
 {
-    scriptDebugServer().interruptAndRun(adoptPtr(new RunInspectorCommandsTask(m_inspectedWorkerGlobalScope->thread())));
+    scriptDebugServer().interruptAndRun(adoptPtr(new RunInspectorCommandsTask(m_inspectedWorkerGlobalScope->thread(), m_taskObserver)));
 }
 
 void WorkerDebuggerAgent::startListeningScriptDebugServer()