gpu: Change Produce/ConsumeTexture to allow texture sharing

gpu/command_buffer/service/framebuffer_manager.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_FRAMEBUFFER_MANAGER_H_
 #define GPU_COMMAND_BUFFER_SERVICE_FRAMEBUFFER_MANAGER_H_
 
 #include "base/basictypes.h"
 #include "base/hash_tables.h"
 #include "base/memory/ref_counted.h"
@@ skipping 13 matching lines @@
 
 // Info about a particular Framebuffer.
 class GPU_EXPORT Framebuffer : public base::RefCounted<Framebuffer> {
  public:
   class Attachment : public base::RefCounted<Attachment> {
    public:
     virtual GLsizei width() const = 0;
     virtual GLsizei height() const = 0;
     virtual GLenum internal_format() const = 0;
     virtual GLsizei samples() const = 0;
+    virtual GLuint object_name() const = 0;
     virtual bool cleared() const = 0;
     virtual void SetCleared(
         RenderbufferManager* renderbuffer_manager,
         TextureManager* texture_manager,
         bool cleared) = 0;
     virtual bool IsTexture(TextureRef* texture) const = 0;
     virtual bool IsRenderbuffer(
         Renderbuffer* renderbuffer) const = 0;
     virtual bool CanRenderTo() const = 0;
     virtual void DetachFromFramebuffer() const = 0;
@@ skipping 193 matching lines @@
   uint32 max_draw_buffers_;
   uint32 max_color_attachments_;
 
   DISALLOW_COPY_AND_ASSIGN(FramebufferManager);
 };
 
 }  // namespace gles2
 }  // namespace gpu
 
 #endif  // GPU_COMMAND_BUFFER_SERVICE_FRAMEBUFFER_MANAGER_H_