Revert of Add subscribeUniform extension pipeline

gpu/command_buffer/service/valuebuffer_manager.cc

-// 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.
-
-#include "gpu/command_buffer/service/valuebuffer_manager.h"
-
-#include "gpu/command_buffer/service/program_manager.h"
-
-namespace gpu {
-namespace gles2 {
-
-Valuebuffer::Valuebuffer(ValuebufferManager* manager, GLuint client_id)
-    : manager_(manager), client_id_(client_id), has_been_bound_(false) {
-  manager_->StartTracking(this);
-}
-
-Valuebuffer::~Valuebuffer() {
-  if (manager_) {
-    manager_->StopTracking(this);
-    manager_ = NULL;
-  }
-}
-
-void Valuebuffer::AddSubscription(GLenum subscription) {
-  subscriptions_.insert(subscription);
-}
-
-void Valuebuffer::RemoveSubscription(GLenum subscription) {
-  subscriptions_.erase(subscription);
-}
-
-bool Valuebuffer::IsSubscribed(GLenum subscription) {
-  return subscriptions_.find(subscription) != subscriptions_.end();
-}
-
-const ValueState *Valuebuffer::GetState(GLenum target) const {
-  StateMap::const_iterator it = active_state_map_.find(target);
-  return it != active_state_map_.end() ? &it->second : NULL;
-}
-
-void Valuebuffer::UpdateState(const StateMap& pending_state) {
-  for (SubscriptionSet::const_iterator it = subscriptions_.begin();
-       it != subscriptions_.end(); ++it) {
-    StateMap::const_iterator pending_state_it = pending_state.find((*it));
-    if (pending_state_it != pending_state.end()) {
-      active_state_map_[pending_state_it->first] = pending_state_it->second;
-    }
-  }
-}
-
-ValuebufferManager::ValuebufferManager()
-    : valuebuffer_count_(0) {
-}
-
-ValuebufferManager::~ValuebufferManager() {
-  DCHECK(valuebuffer_map_.empty());
-  DCHECK(pending_state_map_.empty());
-  // If this triggers, that means something is keeping a reference to
-  // a Valuebuffer belonging to this.
-  CHECK_EQ(valuebuffer_count_, 0u);
-}
-
-void ValuebufferManager::Destroy() {
-  valuebuffer_map_.clear();
-  pending_state_map_.clear();
-}
-
-void ValuebufferManager::StartTracking(Valuebuffer* /* valuebuffer */) {
-  ++valuebuffer_count_;
-}
-
-void ValuebufferManager::StopTracking(Valuebuffer* /* valuebuffer */) {
-  --valuebuffer_count_;
-}
-
-void ValuebufferManager::CreateValuebuffer(GLuint client_id) {
-  scoped_refptr<Valuebuffer> valuebuffer(new Valuebuffer(this, client_id));
-  std::pair<ValuebufferMap::iterator, bool> result =
-      valuebuffer_map_.insert(std::make_pair(client_id, valuebuffer));
-  DCHECK(result.second);
-}
-
-Valuebuffer* ValuebufferManager::GetValuebuffer(GLuint client_id) {
-  ValuebufferMap::iterator it = valuebuffer_map_.find(client_id);
-  return it != valuebuffer_map_.end() ? it->second.get() : NULL;
-}
-
-void ValuebufferManager::RemoveValuebuffer(GLuint client_id) {
-  ValuebufferMap::iterator it = valuebuffer_map_.find(client_id);
-  if (it != valuebuffer_map_.end()) {
-    Valuebuffer* valuebuffer = it->second.get();
-    valuebuffer->MarkAsDeleted();
-    valuebuffer_map_.erase(it);
-  }
-}
-
-void ValuebufferManager::UpdateValuebufferState(Valuebuffer* valuebuffer) {
-  DCHECK(valuebuffer);
-  valuebuffer->UpdateState(pending_state_map_);
-}
-
-void ValuebufferManager::UpdateValueState(
-    GLenum target, const ValueState& state) {
-  pending_state_map_[target] = state;
-}
-
-uint32 ValuebufferManager::ApiTypeForSubscriptionTarget(GLenum target) {
-  switch (target) {
-    case GL_MOUSE_POSITION_CHROMIUM:
-      return Program::kUniform2i;
-  }
-  NOTREACHED() << "Unhandled uniform subscription target " << target;
-  return Program::kUniformNone;
-}
-
-}  // namespace gles2
-}  // namespace gpu