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

content/browser/devtools/worker_devtools_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/devtools/worker_devtools_message_filter.h"
-
-#include "content/browser/devtools/worker_devtools_manager.h"
-#include "content/common/devtools_messages.h"
-#include "content/common/worker_messages.h"
-
-namespace content {
-
-WorkerDevToolsMessageFilter::WorkerDevToolsMessageFilter(
-    int worker_process_host_id)
-    : BrowserMessageFilter(DevToolsMsgStart),
-      worker_process_host_id_(worker_process_host_id),
-      current_routing_id_(0) {
-}
-
-WorkerDevToolsMessageFilter::~WorkerDevToolsMessageFilter() {
-}
-
-bool WorkerDevToolsMessageFilter::OnMessageReceived(
-    const IPC::Message& message) {
-  bool handled = true;
-  current_routing_id_ = message.routing_id();
-  IPC_BEGIN_MESSAGE_MAP(WorkerDevToolsMessageFilter, message)
-    IPC_MESSAGE_HANDLER(DevToolsClientMsg_DispatchOnInspectorFrontend,
-                        OnDispatchOnInspectorFrontend)
-    IPC_MESSAGE_HANDLER(DevToolsHostMsg_SaveAgentRuntimeState,
-                        OnSaveAgentRumtimeState)
-    IPC_MESSAGE_UNHANDLED(handled = false)
-  IPC_END_MESSAGE_MAP()
-  return handled;
-}
-
-void WorkerDevToolsMessageFilter::OnDispatchOnInspectorFrontend(
-    const std::string& message) {
-  WorkerDevToolsManager::GetInstance()->ForwardToDevToolsClient(
-      worker_process_host_id_, current_routing_id_, message);
-}
-
-void WorkerDevToolsMessageFilter::OnSaveAgentRumtimeState(
-    const std::string& state) {
-  WorkerDevToolsManager::GetInstance()->SaveAgentRuntimeState(
-      worker_process_host_id_, current_routing_id_, state);
-}
-
-}  // namespace content