Worker: Introduce per-global-scope task scheduler

third_party/WebKit/Source/web/WebSharedWorkerImpl.cpp

 /*
  * Copyright (C) 2009 Google Inc. All rights reserved.
  *
  * Redistribution and use in source and binary forms, with or without
  * modification, are permitted provided that the following conditions are
  * met:
  *
  *     * Redistributions of source code must retain the above copyright
  * notice, this list of conditions and the following disclaimer.
  *     * Redistributions in binary form must reproduce the above
@@ skipping 14 matching lines @@
  * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
  * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
  * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
  * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
  */
 
 #include "web/WebSharedWorkerImpl.h"
 
 #include <memory>
 #include "core/dom/Document.h"
+#include "core/dom/TaskRunnerHelper.h"
 #include "core/events/MessageEvent.h"
 #include "core/inspector/ConsoleMessage.h"
 #include "core/loader/FrameLoadRequest.h"
 #include "core/loader/FrameLoader.h"
 #include "core/loader/ThreadableLoadingContext.h"
 #include "core/probe/CoreProbes.h"
 #include "core/workers/ParentFrameTaskRunners.h"
 #include "core/workers/SharedWorkerGlobalScope.h"
 #include "core/workers/SharedWorkerThread.h"
 #include "core/workers/WorkerClients.h"
@@ skipping 202 matching lines @@
     std::unique_ptr<WTF::CrossThreadClosure> task) {
   DCHECK(m_workerThread->isCurrentThread());
   m_parentFrameTaskRunners->get(TaskType::Networking)
       ->postTask(FROM_HERE, std::move(task));
 }
 
 void WebSharedWorkerImpl::postTaskToWorkerGlobalScope(
     const WebTraceLocation& location,
     std::unique_ptr<WTF::CrossThreadClosure> task) {
   DCHECK(isMainThread());
-  m_workerThread->postTask(location, std::move(task));
+  TaskRunnerHelper::get(TaskType::Networking, m_workerThread.get())
+      ->postTask(location, std::move(task));
 }
 
 ThreadableLoadingContext* WebSharedWorkerImpl::getThreadableLoadingContext() {
   if (!m_loadingContext) {
     m_loadingContext =
         ThreadableLoadingContext::create(*toDocument(m_loadingDocument.get()));
   }
   return m_loadingContext;
 }
 
 void WebSharedWorkerImpl::connect(
     std::unique_ptr<WebMessagePortChannel> webChannel) {
   DCHECK(isMainThread());
-  workerThread()->postTask(
-      BLINK_FROM_HERE,
-      crossThreadBind(&WebSharedWorkerImpl::connectTaskOnWorkerThread,
-                      WTF::crossThreadUnretained(this),
-                      WTF::passed(std::move(webChannel))));
+  TaskRunnerHelper::get(TaskType::DOMManipulation, workerThread())
+      ->postTask(
+          BLINK_FROM_HERE,
+          crossThreadBind(&WebSharedWorkerImpl::connectTaskOnWorkerThread,
+                          WTF::crossThreadUnretained(this),
+                          WTF::passed(std::move(webChannel))));
 }
 
 void WebSharedWorkerImpl::connectTaskOnWorkerThread(
     std::unique_ptr<WebMessagePortChannel> channel) {
   // Wrap the passed-in channel in a MessagePort, and send it off via a connect
   // event.
   DCHECK(m_workerThread->isCurrentThread());
   WorkerGlobalScope* workerGlobalScope =
       toWorkerGlobalScope(m_workerThread->globalScope());
   MessagePort* port = MessagePort::create(*workerGlobalScope);
@@ skipping 134 matching lines @@
   if (devtoolsAgent)
     devtoolsAgent->dispatchOnInspectorBackend(sessionId, callId, method,
                                               message);
 }
 
 WebSharedWorker* WebSharedWorker::create(WebSharedWorkerClient* client) {
   return new WebSharedWorkerImpl(client);
 }
 
 }  // namespace blink