Implement OSMesa image transport for TOUCH_UI builds

content/common/gpu/image_transport_surface_linux.h

 // 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"
+#include "ui/gfx/surface/transport_dib.h"
 
 class GpuChannelManager;
 
+struct GpuHostMsg_AcceleratedSurfaceNew_Params;
+struct GpuHostMsg_AcceleratedSurfaceBuffersSwapped_Params;
 struct GpuHostMsg_AcceleratedSurfaceRelease_Params;
-struct GpuHostMsg_AcceleratedSurfaceSetIOSurface_Params;
-struct GpuHostMsg_AcceleratedSurfaceBuffersSwapped_Params;
 
 namespace gfx {
 class GLSurface;
 }
 
 namespace gpu {
 class GpuScheduler;
 
 namespace gles2 {
 class GLES2Decoder;
 }
 }
 
 class ImageTransportSurface {
  public:
-  virtual void OnSetSurfaceACK(uint64 surface_id) = 0;
+  virtual void OnNewSurfaceACK(
+      uint64 surface_id, TransportDIB::Handle surface_handle) = 0;
   virtual void OnBuffersSwappedACK() = 0;
   virtual void OnResize(gfx::Size size) = 0;
 
   // Creates the appropriate surface depending on the GL implementation.
   static scoped_refptr<gfx::GLSurface>
       CreateSurface(GpuChannelManager* manager,
                     int32 render_view_id,
                     int32 renderer_id,
                     int32 command_buffer_id);
 };
 
 class ImageTransportHelper : public IPC::Channel::Listener {
  public:
   // Takes weak pointers to objects that outlive the helper.
   ImageTransportHelper(ImageTransportSurface* surface,
                        GpuChannelManager* manager,
                        int32 render_view_id,
                        int32 renderer_id,
                        int32 command_buffer_id);
   ~ImageTransportHelper();
 
   bool Initialize();
   void Destroy();
 
   // IPC::Channel::Listener implementation:
   virtual bool OnMessageReceived(const IPC::Message& message) OVERRIDE;
 
   // Helper send functions. Caller fills in the surface specific params
   // like size and surface id. The helper fills in the rest.
+  void SendAcceleratedSurfaceNew(
+      GpuHostMsg_AcceleratedSurfaceNew_Params params);
+  void SendAcceleratedSurfaceBuffersSwapped(
+      GpuHostMsg_AcceleratedSurfaceBuffersSwapped_Params params);
   void SendAcceleratedSurfaceRelease(
       GpuHostMsg_AcceleratedSurfaceRelease_Params params);
-  void SendAcceleratedSurfaceSetIOSurface(
-      GpuHostMsg_AcceleratedSurfaceSetIOSurface_Params params);
-  void SendAcceleratedSurfaceBuffersSwapped(
-      GpuHostMsg_AcceleratedSurfaceBuffersSwapped_Params params);
 
   // Whether or not we should execute more commands.
   void SetScheduled(bool is_scheduled);
 
+  // Make the surface's context current
+  bool MakeCurrent();
+
  private:
   gpu::GpuScheduler* Scheduler();
   gpu::gles2::GLES2Decoder* Decoder();
 
   // IPC::Message handlers.
-  void OnSetSurfaceACK(uint64 surface_id);
+  void OnNewSurfaceACK(uint64 surface_id, TransportDIB::Handle surface_handle);
   void OnBuffersSwappedACK();
 
   // Backbuffer resize callback.
   void Resize(gfx::Size size);
 
   // Weak pointers that to objects that outlive this helper.
   ImageTransportSurface* surface_;
   GpuChannelManager* manager_;
 
   int32 render_view_id_;
   int32 renderer_id_;
   int32 command_buffer_id_;
   int32 route_id_;
 
   DISALLOW_COPY_AND_ASSIGN(ImageTransportHelper);
 };
 
 #endif  // defined(ENABLE_GPU)
 
 #endif  // CONTENT_COMMON_GPU_IMAGE_TRANSPORT_SURFACE_LINUX_H_