Revert of Add subscribeUniform extension pipeline

gpu/command_buffer/service/valuebuffer_manager.h

-// Copyright (c) 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_VALUEBUFFER_MANAGER_H_
-#define GPU_COMMAND_BUFFER_SERVICE_VALUEBUFFER_MANAGER_H_
-
-#include "base/basictypes.h"
-#include "base/containers/hash_tables.h"
-#include "base/memory/ref_counted.h"
-#include "base/memory/scoped_ptr.h"
-#include "gpu/command_buffer/service/gl_utils.h"
-#include "gpu/gpu_export.h"
-
-namespace gpu {
-namespace gles2 {
-
-class ValuebufferManager;
-
-union ValueState {
-  float float_value[4];
-  int int_value[4];
-};
-
-class GPU_EXPORT Valuebuffer : public base::RefCounted<Valuebuffer> {
- public:
-  Valuebuffer(ValuebufferManager* manager, GLuint client_id);
-
-  GLuint client_id() const { return client_id_; }
-
-  bool IsDeleted() const { return client_id_ == 0; }
-
-  void MarkAsValid() { has_been_bound_ = true; }
-
-  bool IsValid() const { return has_been_bound_ && !IsDeleted(); }
-
-  void AddSubscription(GLenum subscription);
-  void RemoveSubscription(GLenum subscription);
-
-  // Returns true if this Valuebuffer is subscribed to subscription
-  bool IsSubscribed(GLenum subscription);
-
-  // Returns the active state for a given target in this Valuebuffer
-  // returns NULL if target state doesn't exist
-  const ValueState* GetState(GLenum target) const;
-
- private:
-  friend class ValuebufferManager;
-  friend class base::RefCounted<Valuebuffer>;
-
-  typedef base::hash_map<GLenum, ValueState> StateMap;
-  typedef base::hash_set<GLenum> SubscriptionSet;
-
-  ~Valuebuffer();
-
-  void UpdateState(const StateMap& pending_state);
-
-  void MarkAsDeleted() { client_id_ = 0; }
-
-  // ValuebufferManager that owns this Valuebuffer.
-  ValuebufferManager* manager_;
-
-  // Client side Valuebuffer id.
-  GLuint client_id_;
-
-  // Whether this Valuebuffer has ever been bound.
-  bool has_been_bound_;
-
-  SubscriptionSet subscriptions_;
-
-  StateMap active_state_map_;
-};
-
-class GPU_EXPORT ValuebufferManager {
- public:
-  ValuebufferManager();
-  ~ValuebufferManager();
-
-  // Must call before destruction.
-  void Destroy();
-
-  // Creates a Valuebuffer for the given Valuebuffer ids.
-  void CreateValuebuffer(GLuint client_id);
-
-  // Gets the Valuebuffer for the given Valuebuffer id.
-  Valuebuffer* GetValuebuffer(GLuint client_id);
-
-  // Removes a Valuebuffer for the given Valuebuffer id.
-  void RemoveValuebuffer(GLuint client_id);
-
-  // Updates the value state for the given Valuebuffer
-  void UpdateValuebufferState(Valuebuffer* valuebuffer);
-
-  // Gets the state for the given subscription target
-  void UpdateValueState(GLenum target, const ValueState& state);
-
-  static uint32 ApiTypeForSubscriptionTarget(GLenum target);
-
- private:
-  friend class Valuebuffer;
-
-  typedef base::hash_map<GLuint, scoped_refptr<Valuebuffer>> ValuebufferMap;
-
-  void StartTracking(Valuebuffer* valuebuffer);
-  void StopTracking(Valuebuffer* valuebuffer);
-
-  // Counts the number of Valuebuffer allocated with 'this' as its manager.
-  // Allows to check no Valuebuffer will outlive this.
-  unsigned valuebuffer_count_;
-
-  // Info for each Valuebuffer in the system.
-  ValuebufferMap valuebuffer_map_;
-
-  // Current value state in the system
-  Valuebuffer::StateMap pending_state_map_;
-
-  DISALLOW_COPY_AND_ASSIGN(ValuebufferManager);
-};
-
-}  // namespace gles2
-}  // namespace gpu
-
-#endif  // GPU_COMMAND_BUFFER_SERVICE_VALUEBUFFER_MANAGER_H_