gpu: Mailbox emulation with EGLImage

gpu/command_buffer/service/texture_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_TEXTURE_MANAGER_H_
 #define GPU_COMMAND_BUFFER_SERVICE_TEXTURE_MANAGER_H_
 
 #include <list>
 #include <set>
 #include <string>
@@ skipping 144 matching lines @@
   bool IsLevelCleared(GLenum target, GLint level) const;
 
   // Whether the texture has been defined
   bool IsDefined() const {
     return estimated_size() > 0;
   }
 
   // Initialize TEXTURE_MAX_ANISOTROPY to 1 if we haven't done so yet.
   void InitTextureMaxAnisotropyIfNeeded(GLenum target);
 
+  void OnWillModifyPixels();
+  void OnDidModifyPixels();
+
  private:
   friend class MailboxManager;
   friend class MailboxManagerTest;
+  friend class TextureDefinition;
   friend class TextureManager;
   friend class TextureRef;
   friend class TextureTestHelper;
 
   ~Texture();
   void AddTextureRef(TextureRef* ref);
   void RemoveTextureRef(TextureRef* ref, bool have_context);
   MemoryTypeTracker* GetMemTracker();
 
   // Condition on which this texture is renderable. Can be ONLY_IF_NPOT if it
@@ skipping 625 matching lines @@
  private:
   DecoderTextureState* texture_state_;
   base::TimeTicks begin_time_;
   DISALLOW_COPY_AND_ASSIGN(ScopedTextureUploadTimer);
 };
 
 }  // namespace gles2
 }  // namespace gpu
 
 #endif  // GPU_COMMAND_BUFFER_SERVICE_TEXTURE_MANAGER_H_