Initial checkin of the out of process worker implementation....

chrome/worker/webworkerclient_proxy.cc

+// Copyright (c) 2009 The Chromium Authors. All rights reserved.
+// Use of this source code is governed by a BSD-style license that can be
+// found in the LICENSE file.
+
+#include "chrome/worker/webworkerclient_proxy.h"
+
+#include "chrome/common/ipc_logging.h"
+#include "chrome/common/worker_messages.h"
+#include "chrome/worker/worker_process.h"
+#include "chrome/worker/worker_thread.h"
+#include "webkit/glue/webworker.h"
+
+
+WebWorkerClientProxy::WebWorkerClientProxy(const GURL& url, int route_id)
+    : url_(url),
+      route_id_(route_id),
+      started_worker_(false),
+      ALLOW_THIS_IN_INITIALIZER_LIST(impl_(WebWorker::Create(this))) {
+  WorkerThread::current()->AddRoute(route_id_, this);
+  WorkerProcess::current()->AddRefProcess();
+}
+
+WebWorkerClientProxy::~WebWorkerClientProxy() {
+  WorkerThread::current()->RemoveRoute(route_id_);
+  WorkerProcess::current()->ReleaseProcess();
+}
+
+void WebWorkerClientProxy::PostMessageToWorkerObject(const string16& message) {
+  Send(new WorkerHostMsg_PostMessageToWorkerObject(route_id_, message));
+}
+
+void WebWorkerClientProxy::PostExceptionToWorkerObject(
+    const string16& error_message,
+    int line_number,
+    const string16& source_url) {
+  Send(new WorkerHostMsg_PostExceptionToWorkerObject(
+      route_id_, error_message, line_number, source_url));
+}
+
+void WebWorkerClientProxy::PostConsoleMessageToWorkerObject(
+    int destination,
+    int source,
+    int level,
+    const string16& message,
+    int line_number,
+    const string16& source_url) {
+  Send(new WorkerHostMsg_PostConsoleMessageToWorkerObject(
+      route_id_, destination, source, level,message, line_number, source_url));
+}
+
+void WebWorkerClientProxy::ConfirmMessageFromWorkerObject(bool has_pending_activity) {
+  Send(new WorkerHostMsg_ConfirmMessageFromWorkerObject(
+      route_id_, has_pending_activity));
+}
+
+void WebWorkerClientProxy::ReportPendingActivity(bool has_pending_activity) {
+  Send(new WorkerHostMsg_ReportPendingActivity(
+      route_id_, has_pending_activity));
+}
+
+void WebWorkerClientProxy::WorkerContextDestroyed() {
+  Send(new WorkerHostMsg_WorkerContextDestroyed(route_id_));
+}
+
+bool WebWorkerClientProxy::Send(IPC::Message* message) {
+  return WorkerThread::current()->Send(message);
+}
+
+void WebWorkerClientProxy::OnMessageReceived(const IPC::Message& message) {
+  if (!started_worker_ && 
+      message.type() != WorkerMsg_StartWorkerContext::ID) {
+    queued_messages_.push_back(new IPC::Message(message));
+    return;
+  }
+
+  WebWorker* worker = impl_.get();
+  IPC_BEGIN_MESSAGE_MAP(WebWorkerClientProxy, message)
+    IPC_MESSAGE_FORWARD(WorkerMsg_StartWorkerContext, worker,
+                        WebWorker::StartWorkerContext)
+    IPC_MESSAGE_FORWARD(WorkerMsg_TerminateWorkerContext, worker,
+                        WebWorker::TerminateWorkerContext)
+    IPC_MESSAGE_FORWARD(WorkerMsg_PostMessageToWorkerContext, worker,
+                        WebWorker::PostMessageToWorkerContext)
+    IPC_MESSAGE_FORWARD(WorkerMsg_WorkerObjectDestroyed, worker,
+                        WebWorker::WorkerObjectDestroyed)
+  IPC_END_MESSAGE_MAP()
+
+  if (message.type() == WorkerMsg_StartWorkerContext::ID) {
+    started_worker_ = true;
+    for (size_t i = 0; i < queued_messages_.size(); ++i)
+      OnMessageReceived(*queued_messages_[i]);
+
+    queued_messages_.clear();
+  }
+}