FindFirstUnusedId   29 gpu/command_buffer/common/id_allocator.cc       id = FindFirstUnusedId();
FindFirstUnusedId   47 gpu/command_buffer/common/id_allocator.cc       id = FindFirstUnusedId();
FindFirstUnusedId   66 gpu/command_buffer/common/id_allocator.h   ResourceId FindFirstUnusedId() const;