chromium/components/viz/common/surfaces/parent_local_surface_id_allocator.cc

// Copyright 2017 The Chromium Authors
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.

#include "components/viz/common/surfaces/parent_local_surface_id_allocator.h"

#include "base/rand_util.h"
#include "base/trace_event/trace_event.h"

namespace viz {

constexpr LocalSurfaceId g_invalid_local_surface_id;

ParentLocalSurfaceIdAllocator::ParentLocalSurfaceIdAllocator()
    : … { … }

bool ParentLocalSurfaceIdAllocator::UpdateFromChild(
    const LocalSurfaceId& child_local_surface_id) { … }

void ParentLocalSurfaceIdAllocator::Invalidate(
    bool also_invalidate_allocation_group) { … }

void ParentLocalSurfaceIdAllocator::GenerateId() { … }

const LocalSurfaceId& ParentLocalSurfaceIdAllocator::GetCurrentLocalSurfaceId()
    const { … }

bool ParentLocalSurfaceIdAllocator::HasValidLocalSurfaceId() const { … }

const base::UnguessableToken& ParentLocalSurfaceIdAllocator::GetEmbedToken()
    const { … }

// static
const LocalSurfaceId& ParentLocalSurfaceIdAllocator::InvalidLocalSurfaceId() { … }

}  // namespace viz