Move GuestView layer in browser to components

extensions/browser/guest_view/guest_view_message_filter.cc

Index: extensions/browser/guest_view/guest_view_message_filter.cc
diff --git a/extensions/browser/guest_view/guest_view_message_filter.cc b/extensions/browser/guest_view/guest_view_message_filter.cc
deleted file mode 100644
index 26188fa74801cbdd468c52cc005bf2b6b7493096..0000000000000000000000000000000000000000
--- a/extensions/browser/guest_view/guest_view_message_filter.cc
+++ /dev/null
@@ -1,80 +0,0 @@
-// 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.
-
-#include "extensions/browser/guest_view/guest_view_message_filter.h"
-
-#include "content/public/browser/browser_thread.h"
-#include "content/public/browser/render_frame_host.h"
-#include "content/public/browser/render_process_host.h"
-#include "content/public/browser/render_view_host.h"
-#include "extensions/browser/guest_view/guest_view_base.h"
-#include "extensions/browser/guest_view/guest_view_manager.h"
-#include "extensions/common/guest_view/guest_view_messages.h"
-#include "ipc/ipc_message_macros.h"
-
-using content::BrowserContext;
-using content::BrowserThread;
-using content::RenderFrameHost;
-using content::WebContents;
-
-namespace extensions {
-
-GuestViewMessageFilter::GuestViewMessageFilter(int render_process_id,
-                                               BrowserContext* context)
-    : BrowserMessageFilter(GuestViewMsgStart),
-      render_process_id_(render_process_id),
-      browser_context_(context),
-      weak_ptr_factory_(this) {
-  DCHECK_CURRENTLY_ON(BrowserThread::UI);
-}
-
-GuestViewMessageFilter::~GuestViewMessageFilter() {
-  DCHECK_CURRENTLY_ON(BrowserThread::IO);
-}
-
-void GuestViewMessageFilter::OverrideThreadForMessage(
-    const IPC::Message& message,
-    BrowserThread::ID* thread) {
-  switch (message.type()) {
-    case GuestViewHostMsg_AttachGuest::ID:
-      *thread = BrowserThread::UI;
-      break;
-    default:
-      break;
-  }
-}
-
-void GuestViewMessageFilter::OnDestruct() const {
-  // Destroy the filter on the IO thread since that's where its weak pointers
-  // are being used.
-  BrowserThread::DeleteOnIOThread::Destruct(this);
-}
-
-bool GuestViewMessageFilter::OnMessageReceived(const IPC::Message& message) {
-  bool handled = true;
-  IPC_BEGIN_MESSAGE_MAP(GuestViewMessageFilter, message)
-    IPC_MESSAGE_HANDLER(GuestViewHostMsg_AttachGuest, OnAttachGuest)
-    IPC_MESSAGE_UNHANDLED(handled = false)
-  IPC_END_MESSAGE_MAP()
-  return handled;
-}
-
-void GuestViewMessageFilter::OnAttachGuest(
-    int element_instance_id,
-    int guest_instance_id,
-    const base::DictionaryValue& params) {
-  DCHECK_CURRENTLY_ON(BrowserThread::UI);
-  auto manager = GuestViewManager::FromBrowserContext(browser_context_);
-  // We should have a GuestViewManager at this point. If we don't then the
-  // embedder is misbehaving.
-  if (!manager)
-    return;
-
-  manager->AttachGuest(render_process_id_,
-                       element_instance_id,
-                       guest_instance_id,
-                       params);
-}
-
-}  // namespace extensions