Add a base class of Texture for interfacing with the mailbox manager.

gpu/command_buffer/service/mailbox_manager_sync.h

 // Copyright 2014 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_MAILBOX_MANAGER_SYNC_H_
 #define GPU_COMMAND_BUFFER_SERVICE_MAILBOX_MANAGER_SYNC_H_
 
 #include <map>
 #include <utility>
 
 #include "base/lazy_instance.h"
 #include "base/macros.h"
 #include "base/memory/ref_counted.h"
 #include "gpu/command_buffer/common/constants.h"
 #include "gpu/command_buffer/common/mailbox.h"
 #include "gpu/command_buffer/service/mailbox_manager.h"
 #include "gpu/command_buffer/service/texture_definition.h"
 #include "gpu/gpu_export.h"
 
 namespace gpu {
 namespace gles2 {
 
-class Texture;
+class TextureBase;
 class TextureManager;
 
 // Manages resources scoped beyond the context or context group level
 // and across threads and driver level share groups by synchronizing
 // texture state.
 class GPU_EXPORT MailboxManagerSync : public MailboxManager {
  public:
   MailboxManagerSync();
 
   // MailboxManager implementation:
-  Texture* ConsumeTexture(const Mailbox& mailbox) override;
-  void ProduceTexture(const Mailbox& mailbox, Texture* texture) override;
+  TextureBase* ConsumeTexture(const Mailbox& mailbox) override;
+  void ProduceTexture(const Mailbox& mailbox, TextureBase* texture) override;
   bool UsesSync() override;
   void PushTextureUpdates(const SyncToken& token) override;
   void PullTextureUpdates(const SyncToken& token) override;
-  void TextureDeleted(Texture* texture) override;
+  void TextureDeleted(TextureBase* texture) override;
 
  private:
   friend class base::RefCounted<MailboxManager>;
 
   static bool SkipTextureWorkarounds(const Texture* texture);
 
   ~MailboxManagerSync() override;
 
   class TextureGroup : public base::RefCounted<TextureGroup> {
    public:
@@ skipping 27 matching lines @@
     static base::LazyInstance<MailboxToGroupMap> mailbox_to_group_;
   };
 
   struct TextureGroupRef {
     TextureGroupRef(unsigned version, TextureGroup* group);
     TextureGroupRef(const TextureGroupRef& other);
     ~TextureGroupRef();
     unsigned version;
     scoped_refptr<TextureGroup> group;
   };
-  static void UpdateDefinitionLocked(Texture* texture,
+  static void UpdateDefinitionLocked(TextureBase* texture,
                                      TextureGroupRef* group_ref);
 
   typedef std::map<Texture*, TextureGroupRef> TextureToGroupMap;
   TextureToGroupMap texture_to_group_;
 
   DISALLOW_COPY_AND_ASSIGN(MailboxManagerSync);
 };
 
 }  // namespage gles2
 }  // namespace gpu
 
 #endif  // GPU_COMMAND_BUFFER_SERVICE_MAILBOX_MANAGER_SYNC_H_