Create new GLSurface for cross process image transport.

content/common/gpu/image_transport_surface_linux.h

Index: content/common/gpu/image_transport_surface_linux.h
diff --git a/content/common/gpu/image_transport_surface_linux.h b/content/common/gpu/image_transport_surface_linux.h
new file mode 100644
index 0000000000000000000000000000000000000000..addb163a03204e79d7c705c3726ff205842611c9
--- /dev/null
+++ b/content/common/gpu/image_transport_surface_linux.h
@@ -0,0 +1,67 @@
+// 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.
+
+#ifndef CONTENT_COMMON_GPU_IMAGE_TRANSPORT_SURFACE_LINUX_H_
+#define CONTENT_COMMON_GPU_IMAGE_TRANSPORT_SURFACE_LINUX_H_
+#pragma once
+
+#if defined(ENABLE_GPU)
+
+#include "base/memory/ref_counted.h"
+#include "ipc/ipc_channel.h"
+#include "ipc/ipc_message.h"
+#include "ui/gfx/size.h"
+
+class GpuCommandBufferStub;
+
+namespace gfx {
+class GLSurface;
+}
+
+namespace gpu {
+class GpuScheduler;
+}
+
+class ImageTransportSurface : public IPC::Channel::Listener,
+                              public IPC::Message::Sender {
+ public:
+  // Creates the appropriate surface depending on the GL implementation
+  static scoped_refptr<gfx::GLSurface>
+      CreateSurface(GpuCommandBufferStub* stub);
+
+  virtual bool Initialize();

[apatrick_chromium, 2011/07/21 21:03:02]

I guess we should start using OVERRIDE.

[jonathan.backer, 2011/07/22 13:12:40]

Done. But we're not overriding anything here. This class isn't a GLSurface.
Making it non-virtual.

+  virtual void Destroy();
+
+  // IPC::Channel::Listener implementation:
+  virtual bool OnMessageReceived(const IPC::Message& message);
+
+  // IPC::Message::Sender implementation:
+  virtual bool Send(IPC::Message* msg);
+
+ protected:
+  explicit ImageTransportSurface(GpuCommandBufferStub* stub);
+  ~ImageTransportSurface();
+
+  // IPC::Message handlers
+  virtual void OnSetSurfaceACK(uint64 surface_id) = 0;
+  virtual void OnBuffersSwappedACK() = 0;
+
+  // Resize the backbuffer
+  virtual void Resize(gfx::Size size) = 0;
+
+  GpuCommandBufferStub* stub() { return stub_; }
+  gpu::GpuScheduler* scheduler();
+  int32 route_id() { return route_id_; }
+
+ private:
+  // Weak pointer. The stub outlives this surface.
+  GpuCommandBufferStub* stub_;
+  int32 route_id_;
+
+  DISALLOW_COPY_AND_ASSIGN(ImageTransportSurface);
+};
+
+#endif  // defined(ENABLE_GPU)
+
+#endif  // CONTENT_COMMON_GPU_EGL_IMAGE_TRANSPORT_SURFACE_LINUX_H_