Removed implementation of CHROMIUM_subscribe_uniform

gpu/command_buffer/common/value_state.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_COMMON_VALUE_STATE_H_
-#define GPU_COMMAND_BUFFER_COMMON_VALUE_STATE_H_
-
-#include "base/containers/hash_tables.h"
-#include "base/macros.h"
-#include "base/memory/ref_counted.h"
-#include "gpu/gpu_export.h"
-
-namespace gpu {
-
-// Used to maintain Valuebuffer state, exposed to browser to
-// support passing ValueStates via IPC.
-union GPU_EXPORT ValueState {
-  float float_value[4];
-  int int_value[4];
-};
-
-// Refcounted wrapper for a hash_map of subscription targets to ValueStates
-class GPU_EXPORT ValueStateMap : public base::RefCounted<ValueStateMap> {
- public:
-  ValueStateMap();
-
-  // Returns NULL if there is not ValueState for the target
-  const ValueState* GetState(unsigned int target) const;
-
-  void UpdateState(unsigned int target, const ValueState& state);
-
- protected:
-  virtual ~ValueStateMap();
-
- private:
-  friend class base::RefCounted<ValueStateMap>;
-
-  typedef base::hash_map<unsigned int, ValueState> Map;
-
-  Map state_map_;
-
-  DISALLOW_COPY_AND_ASSIGN(ValueStateMap);
-};
-
-}  // namespace gpu
-
-#endif  // GPU_COMMAND_BUFFER_COMMON_VALUE_STATE_H_