Move GuestView layer in browser to components

extensions/common/guest_view/guest_view_messages.h

-// Copyright 2015 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.
-
-// IPC messages for GuestViews.
-// Multiply-included message file, hence no include guard.
-
-#include "base/values.h"
-#include "ipc/ipc_message_macros.h"
-
-#define IPC_MESSAGE_START GuestViewMsgStart
-
-// Messages sent from the browser to the renderer.
-
-// Once a RenderView proxy has been created for the guest in the embedder render
-// process, this IPC informs the embedder of the proxy's routing ID.
-IPC_MESSAGE_CONTROL2(GuestViewMsg_GuestAttached,
-                     int /* element_instance_id */,
-                     int /* source_routing_id */)
-
-// This IPC tells the browser process to detach the provided
-// |element_instance_id| from a GuestViewBase if it is attached to one.
-// In other words, routing of input and graphics will no longer flow through
-// the container associated with the provided ID.
-IPC_MESSAGE_CONTROL1(GuestViewMsg_GuestDetached,
-                     int /* element_instance_id*/)
-
-// Messages sent from the renderer to the browser.
-
-// Sent by the renderer to set initialization parameters of a Browser Plugin
-// that is identified by |element_instance_id|.
-IPC_MESSAGE_CONTROL3(GuestViewHostMsg_AttachGuest,
-                     int /* element_instance_id */,
-                     int /* guest_instance_id */,
-                     base::DictionaryValue /* attach_params */)