gpu: Add support for GLX_EXT_texture_from_pixmap extension.

content/common/gpu/gpu_channel_manager.h

Index: content/common/gpu/gpu_channel_manager.h
diff --git a/content/common/gpu/gpu_channel_manager.h b/content/common/gpu/gpu_channel_manager.h
index b256a56d8d0123b600f2f1140fefddf1ade58975..78b5079439f9c6bac8a605320856fc481ff664c9 100644
--- a/content/common/gpu/gpu_channel_manager.h
+++ b/content/common/gpu/gpu_channel_manager.h
@@ -5,6 +5,7 @@
 #ifndef CONTENT_COMMON_GPU_GPU_CHANNEL_MANAGER_H_
 #define CONTENT_COMMON_GPU_GPU_CHANNEL_MANAGER_H_
 
+#include <deque>
 #include <vector>
 
 #include "base/hash_tables.h"
@@ -96,6 +97,16 @@ class GpuChannelManager : public IPC::Listener,
   gfx::GLSurface* GetDefaultOffscreenSurface();
 
  private:
+  struct ImageOperation {
+    ImageOperation(int32 sync_point, base::Closure callback);
+    ~ImageOperation();
+
+    int32 sync_point;
+    base::Closure callback;
+  };
+  typedef base::hash_map<int, scoped_refptr<GpuChannel> > GpuChannelMap;
+  typedef std::deque<ImageOperation*> ImageOperationQueue;
+
   // Message handlers.
   void OnEstablishChannel(int client_id, bool share_context);
   void OnCloseChannel(const IPC::ChannelHandle& channel_handle);
@@ -106,6 +117,13 @@ class GpuChannelManager : public IPC::Listener,
       int32 render_view_id,
       int32 client_id,
       const GPUCreateCommandBufferConfig& init_params);
+  void CreateImage(
+      gfx::PluginWindowHandle window, int32 client_id, int32 image_id);
+  void OnCreateImage(
+      gfx::PluginWindowHandle window, int32 client_id, int32 image_id);
+  void DeleteImage(int32 client_id, int32 image_id);
+  void OnDeleteImage(int32 client_id, int32 image_id, int32 sync_point);
+  void OnDeleteImageSyncPointRetired(ImageOperation*);
 
   void OnLoseAllContexts();
 
@@ -118,7 +136,6 @@ class GpuChannelManager : public IPC::Listener,
   // These objects manage channels to individual renderer processes there is
   // one channel for each renderer process that has connected to this GPU
   // process.
-  typedef base::hash_map<int, scoped_refptr<GpuChannel> > GpuChannelMap;
   GpuChannelMap gpu_channels_;
   scoped_refptr<gfx::GLShareGroup> share_group_;
   scoped_refptr<gpu::gles2::MailboxManager> mailbox_manager_;
@@ -127,6 +144,7 @@ class GpuChannelManager : public IPC::Listener,
   scoped_refptr<SyncPointManager> sync_point_manager_;
   scoped_ptr<gpu::gles2::ProgramCache> program_cache_;
   scoped_refptr<gfx::GLSurface> default_offscreen_surface_;
+  ImageOperationQueue image_operations_;
 
   DISALLOW_COPY_AND_ASSIGN(GpuChannelManager);
 };