Add reference-counting for mailbox textures.

gpu/command_buffer/service/texture_definition.h

 // Copyright (c) 2012 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 GPU_COMMAND_BUFFER_SERVICE_TEXTURE_DEFINITION_H_
 #define GPU_COMMAND_BUFFER_SERVICE_TEXTURE_DEFINITION_H_
 
 #include <vector>
 
 #include "base/callback.h"
+#include "base/memory/ref_counted.h"
 #include "gpu/command_buffer/service/gl_utils.h"
 #include "gpu/gpu_export.h"
 
 namespace gpu {
 namespace gles2 {
 
 // A saved definition of a texture that still exists in the underlying
 // GLShareGroup and can be used to redefine a client visible texture in any
 // context using the same GLShareGroup with the corresponding service ID.
-class GPU_EXPORT TextureDefinition {
+class GPU_EXPORT TextureDefinition :
+    public base::RefCounted<TextureDefinition> {
  public:
   struct GPU_EXPORT LevelInfo {
     LevelInfo(GLenum target,
               GLenum internal_format,
               GLsizei width,
               GLsizei height,
               GLsizei depth,
               GLint border,
               GLenum format,
               GLenum type,
@@ skipping 19 matching lines @@
                     GLuint service_id,
                     GLenum min_filter,
                     GLenum mag_filter,
                     GLenum wrap_s,
                     GLenum wrap_t,
                     GLenum usage,
                     bool immutable,
                     const LevelInfos& level_infos);
   ~TextureDefinition();
 
+  void SetDestroyCallback(const DestroyCallback& callback) {
+    destroy_callback_ = callback;
+  }
+
   GLenum target() const {
     return target_;
   }
 
   GLuint ReleaseServiceId();
+  GLuint service_id() const { return service_id_; }
   GLenum min_filter() const { return min_filter_; }
   GLenum mag_filter() const { return mag_filter_; }
   GLenum wrap_s() const { return wrap_s_; }
   GLenum wrap_t() const { return wrap_t_; }
   GLenum usage() const { return usage_; }
 
   bool immutable() const { return immutable_; }
 
   const LevelInfos& level_infos() const {
     return level_infos_;
   }
 
  private:
   GLenum target_;
   GLuint service_id_;
   GLenum min_filter_;
   GLenum mag_filter_;
   GLenum wrap_s_;
   GLenum wrap_t_;
   GLenum usage_;
   bool immutable_;
   std::vector<std::vector<LevelInfo> > level_infos_;
+  DestroyCallback destroy_callback_;
 
   DISALLOW_COPY_AND_ASSIGN(TextureDefinition);
 };
 
 }  // namespage gles2
 }  // namespace gpu
 
 #endif  // GPU_COMMAND_BUFFER_SERVICE_TEXTURE_DEFINITION_H_