Remove disable-embedded-shared-worker flag and shared worker process related codes.

content/browser/worker_host/worker_message_filter.cc

-// Copyright (c) 2011 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 "content/browser/worker_host/worker_message_filter.h"
-
-#include "content/browser/message_port_message_filter.h"
-#include "content/browser/worker_host/worker_service_impl.h"
-#include "content/common/view_messages.h"
-#include "content/common/worker_messages.h"
-#include "content/public/browser/resource_context.h"
-
-namespace content {
-
-WorkerMessageFilter::WorkerMessageFilter(
-    int render_process_id,
-    ResourceContext* resource_context,
-    const WorkerStoragePartition& partition,
-    MessagePortMessageFilter* message_port_message_filter)
-    : BrowserMessageFilter(ViewMsgStart),
-      render_process_id_(render_process_id),
-      resource_context_(resource_context),
-      partition_(partition),
-      message_port_message_filter_(message_port_message_filter) {
-  // Note: This constructor is called on both IO or UI thread.
-  DCHECK(resource_context);
-}
-
-WorkerMessageFilter::~WorkerMessageFilter() {
-  DCHECK(BrowserThread::CurrentlyOn(BrowserThread::IO));
-}
-
-void WorkerMessageFilter::OnChannelClosing() {
-  WorkerServiceImpl::GetInstance()->OnWorkerMessageFilterClosing(this);
-}
-
-bool WorkerMessageFilter::OnMessageReceived(const IPC::Message& message) {
-  bool handled = true;
-  IPC_BEGIN_MESSAGE_MAP(WorkerMessageFilter, message)
-    // Worker messages.
-    // Only sent from renderer for now, until we have nested workers.
-    IPC_MESSAGE_HANDLER(ViewHostMsg_CreateWorker, OnCreateWorker)
-    IPC_MESSAGE_HANDLER(ViewHostMsg_ForwardToWorker, OnForwardToWorker)
-    // Only sent from renderer.
-    IPC_MESSAGE_HANDLER(ViewHostMsg_DocumentDetached, OnDocumentDetached)
-    IPC_MESSAGE_UNHANDLED(handled = false)
-  IPC_END_MESSAGE_MAP()
-
-  return handled;
-}
-
-int WorkerMessageFilter::GetNextRoutingID() {
-  return message_port_message_filter_->GetNextRoutingID();
-}
-
-void WorkerMessageFilter::OnCreateWorker(
-    const ViewHostMsg_CreateWorker_Params& params,
-    int* route_id) {
-  bool url_error = false;
-  *route_id = GetNextRoutingID();
-  WorkerServiceImpl::GetInstance()->CreateWorker(
-      params, *route_id, this, resource_context_, partition_, &url_error);
-  if (url_error)
-    *route_id = MSG_ROUTING_NONE;
-}
-
-void WorkerMessageFilter::OnForwardToWorker(const IPC::Message& message) {
-  WorkerServiceImpl::GetInstance()->ForwardToWorker(message, this);
-}
-
-void WorkerMessageFilter::OnDocumentDetached(unsigned long long document_id) {
-  WorkerServiceImpl::GetInstance()->DocumentDetached(document_id, this);
-}
-
-}  // namespace content