1 // Copyright 2013 The Chromium Authors. All rights reserved. 2 // Use of this source code is governed by a BSD-style license that can be 3 // found in the LICENSE file. 4 5 #include "base/logging.h" 6 #include "cc/base/swap_promise_monitor.h" 7 #include "cc/trees/layer_tree_host.h" 8 #include "cc/trees/layer_tree_host_impl.h" 9 10 namespace cc { 11 12 SwapPromiseMonitor::SwapPromiseMonitor(LayerTreeHost* layer_tree_host, 13 LayerTreeHostImpl* layer_tree_host_impl) 14 : layer_tree_host_(layer_tree_host), 15 layer_tree_host_impl_(layer_tree_host_impl) { 16 DCHECK((layer_tree_host && !layer_tree_host_impl) || 17 (!layer_tree_host && layer_tree_host_impl)); 18 if (layer_tree_host_) 19 layer_tree_host_->InsertSwapPromiseMonitor(this); 20 if (layer_tree_host_impl_) 21 layer_tree_host_impl_->InsertSwapPromiseMonitor(this); 22 } 23 24 SwapPromiseMonitor::~SwapPromiseMonitor() { 25 if (layer_tree_host_) 26 layer_tree_host_->RemoveSwapPromiseMonitor(this); 27 if (layer_tree_host_impl_) 28 layer_tree_host_impl_->RemoveSwapPromiseMonitor(this); 29 } 30 31 } // namespace cc 32
