Split GpuProcessHost into GpuProcessHostUIShim, which runs on the UI...

chrome/browser/gpu_process_host_ui_shim.cc

+// Copyright (c) 2010 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 "chrome/browser/gpu_process_host_ui_shim.h"
+
+#include "chrome/browser/chrome_thread.h"
+#include "chrome/browser/gpu_process_host.h"
+#include "chrome/common/gpu_messages.h"
+
+// Tasks used by this file
+namespace {
+
+class SendOnIOThreadTask : public Task {
+ public:
+  explicit SendOnIOThreadTask(IPC::Message* msg) : msg_(msg) {
+  }
+
+ private:
+  void Run() {
+    GpuProcessHost::Get()->Send(msg_);
+  }
+  IPC::Message* msg_;
+};
+
+}  // namespace
+
+GpuProcessHostUIShim::GpuProcessHostUIShim() : last_routing_id_(1) {
+}
+
+GpuProcessHostUIShim::~GpuProcessHostUIShim() {
+}
+
+// static
+GpuProcessHostUIShim* GpuProcessHostUIShim::Get() {
+  return Singleton<GpuProcessHostUIShim>::get();
+}
+
+int32 GpuProcessHostUIShim::NewRenderWidgetHostView(
+    GpuNativeWindowHandle parent) {
+  int32 routing_id = GetNextRoutingId();
+  Send(new GpuMsg_NewRenderWidgetHostView(parent, routing_id));
+  return routing_id;
+}
+
+bool GpuProcessHostUIShim::Send(IPC::Message* msg) {
+  ChromeThread::PostTask(ChromeThread::IO,
+                         FROM_HERE,
+                         new SendOnIOThreadTask(msg));
+  return true;
+}
+
+int32 GpuProcessHostUIShim::GetNextRoutingId() {
+  return ++last_routing_id_;
+}
+
+void GpuProcessHostUIShim::AddRoute(int32 routing_id,
+                                    IPC::Channel::Listener* listener) {
+  router_.AddRoute(routing_id, listener);
+}
+
+void GpuProcessHostUIShim::RemoveRoute(int32 routing_id) {
+  router_.RemoveRoute(routing_id);
+}
+
+void GpuProcessHostUIShim::OnMessageReceived(const IPC::Message& message) {
+  router_.RouteMessage(message);
+}
+