Separate EmbeddedWorker messages into another file to use different msg class

content/common/service_worker/embedded_worker_messages.h

Index: content/common/service_worker/embedded_worker_messages.h
diff --git a/content/common/service_worker/embedded_worker_messages.h b/content/common/service_worker/embedded_worker_messages.h
new file mode 100644
index 0000000000000000000000000000000000000000..9f904ee3b7eb93cfd262d516788c1cfb862f96f0
--- /dev/null
+++ b/content/common/service_worker/embedded_worker_messages.h
@@ -0,0 +1,55 @@
+// Copyright 2014 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.
+
+// Message definition file, included multiple times, hence no include guard.
+
+#include <string>
+
+#include "content/common/service_worker/service_worker_types.h"
+#include "ipc/ipc_message_macros.h"
+#include "ipc/ipc_param_traits.h"
+#include "url/gurl.h"
+
+#undef IPC_MESSAGE_EXPORT
+#define IPC_MESSAGE_EXPORT CONTENT_EXPORT
+
+IPC_STRUCT_TRAITS_BEGIN(content::ServiceWorkerFetchRequest)
+  IPC_STRUCT_TRAITS_MEMBER(url)
+  IPC_STRUCT_TRAITS_MEMBER(method)
+  IPC_STRUCT_TRAITS_MEMBER(headers)
+IPC_STRUCT_TRAITS_END()
+
+#define IPC_MESSAGE_START EmbeddedWorkerMsgStart
+
+// Browser -> Renderer message to create a new embedded worker context.
+IPC_MESSAGE_CONTROL3(EmbeddedWorkerMsg_StartWorker,
+                     int /* embedded_worker_id */,
+                     int64 /* service_worker_version_id */,
+                     GURL /* script_url */)
+
+// Browser -> Renderer message to stop (terminate) the embedded worker.
+IPC_MESSAGE_CONTROL1(EmbeddedWorkerMsg_StopWorker,
+                     int /* embedded_worker_id */)
+
+// Renderer -> Browser message to indicate that the worker is started.
+IPC_MESSAGE_CONTROL2(EmbeddedWorkerHostMsg_WorkerStarted,
+                     int /* thread_id */,
+                     int /* embedded_worker_id */)
+
+// Renderer -> Browser message to indicate that the worker is stopped.
+IPC_MESSAGE_CONTROL1(EmbeddedWorkerHostMsg_WorkerStopped,
+                     int /* embedded_worker_id */)
+
+// ---------------------------------------------------------------------------
+// For EmbeddedWorkerContext related messages, which are directly sent from
+// browser to the worker thread in the child process. We use a new message class
+// for this for easier cross-thread message dispatching.
+
+#undef IPC_MESSAGE_START
+#define IPC_MESSAGE_START EmbeddedWorkerContextMsgStart
+
+IPC_MESSAGE_CONTROL3(EmbeddedWorkerContextMsg_FetchEvent,
+                     int /* thread_id */,
+                     int /* embedded_worker_id */,
+                     content::ServiceWorkerFetchRequest)