Replace context parenting by sharing through mailboxes

gpu/command_buffer/service/gles2_cmd_decoder.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.
 
 // This file contains the GLES2Decoder class.
 
 #ifndef GPU_COMMAND_BUFFER_SERVICE_GLES2_CMD_DECODER_H_
 #define GPU_COMMAND_BUFFER_SERVICE_GLES2_CMD_DECODER_H_
 
 #include <vector>
@@ skipping 10 matching lines @@
 namespace gfx {
 class GLContext;
 class GLSurface;
 }
 
 namespace gpu {
 
 class AsyncPixelTransferDelegate;
 class AsyncPixelTransferManager;
 class StreamTextureManager;
+struct Mailbox;
 
 namespace gles2 {
 
 class ContextGroup;
 class ErrorState;
 class GLES2Util;
 class Logger;
 class QueryManager;
 class VertexArrayManager;
 
@@ skipping 73 matching lines @@
                           const DisallowedFeatures& disallowed_features,
                           const char* allowed_extensions,
                           const std::vector<int32>& attribs) = 0;
 
   // Destroys the graphics context.
   virtual void Destroy(bool have_context) = 0;
 
   // Set the surface associated with the default FBO.
   virtual void SetSurface(const scoped_refptr<gfx::GLSurface>& surface) = 0;
 
-  virtual bool SetParent(GLES2Decoder* parent_decoder,
-                         uint32 parent_texture_id) = 0;
+  virtual bool ProduceFrontBuffer(const Mailbox& mailbox) = 0;
 
   // Resize an offscreen frame buffer.
   virtual bool ResizeOffscreenFrameBuffer(const gfx::Size& size) = 0;
 
   // Make this decoder's GL context current.
   virtual bool MakeCurrent() = 0;
 
   // Have the decoder release the context.
   virtual void ReleaseCurrent() = 0;
 
@@ skipping 106 matching lines @@
   bool debug_;
   bool log_commands_;
   static bool testing_force_is_angle_;
 
   DISALLOW_COPY_AND_ASSIGN(GLES2Decoder);
 };
 
 }  // namespace gles2
 }  // namespace gpu
 #endif  // GPU_COMMAND_BUFFER_SERVICE_GLES2_CMD_DECODER_H_